Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-93990: Expat through 2.8.4 fails to validate low surrogates following high surrogates in UTF-16 input, allowing malformed UTF-16 sequences to be accepted. Attackers can craft UTF-16 encoded XML with lone high surrogates that consume following code units, hiding markup characters from the parser and enabling XML injection attacks. CVE-2026-113868: When authenticating to a POP3 or SMTP server using NTLM, Thunderbird did not check whether the server's challenge was valid base64. A malicious server could send a challenge that caused Thunderbird to include uninitialized heap memory in its NTLM response, disclosing that memory to the server. A challenge consisting only of base64 padding also caused an out-of-bounds read, crashing Thunderbird. This affected accounts configured to use NTLM or GSSAPI authentication. The uninitialized memory disclosure only affected NTLM. This vulnerability was fixed in Thunderbird 158.0.1 and Thunderbird 153.5.1. CVE-2026-113867: Thunderbird did not escape attribute values when serializing outgoing XMPP stanzas. Because values from incoming requests were echoed back in automatic replies, a remote XMPP user could send a crafted request that caused Thunderbird to inject arbitrary stanzas into the user's connection, which the server would then process as if sent by the user. This could be used to send messages or change contact and subscription settings on behalf of the user, without any interaction. This bug only affects Thunderbird's chat feature with XMPP accounts. This vulnerability was fixed in Thunderbird 158.0.1 and Thunderbird 153.5.1. CVE-2026-113866: When setting up an account, Thunderbird's Exchange AutoDiscover lookup also queried the domain's AutoDiscover service over plain HTTP. Due to a bug, that unencrypted request included the credentials the user had entered, allowing a network attacker to obtain the user's password. This vulnerability was fixed in Thunderbird 158.0.1 and Thunderbird 153.5.1. CVE-2026-110249: A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbird 158 and Thunderbird 153.5. CVE-2026-109783: Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5. CVE-2026-109782: Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5. CVE-2026-109781: Denial-of-service in the Printing: Output component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109778: Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109777: Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109776: Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109775: Denial-of-service in the WebRTC component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109770: Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109767: Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109766: Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109765: Race condition, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109764: Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109763: Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109762: Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109760: Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109759: Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109757: Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109756: Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109754: Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109753: Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, and Firefox ESR 153.5. CVE-2026-109752: Use-after-free in the DOM: Workers component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109751: Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109745: Sandbox escape due to uninitialized memory in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109744: Other issue in the DOM: File component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109743: Privilege escalation in the Panning and Zooming component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109742: Information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. CVE-2026-109741: Use-after-free in the Storage: Bucket File Syste
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | thunderbird | 0:153.5.1-1.amzn2.0.1 |
Vulnerabilities 72
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Critical 9.6
Sandbox escape due to use-after-free in the DOM: Content Processes component
Sandbox escape due to use-after-free in the DOM: Content Processes component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
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Critical 9.6
Sandbox escape due to use-after-free in the DOM: Content Processes component
Sandbox escape due to use-after-free in the DOM: Content Processes component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
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Critical 9.6
Sandbox escape due to use-after-free in the DOM: Core & HTML component
Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
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Critical 9.6
Sandbox escape due to use-after-free in the Graphics component
Sandbox escape due to use-after-free in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
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Critical 9.6
Sandbox escape due to use-after-free in the DOM: Core & HTML component
Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
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Critical 9.6
Sandbox escape due to use-after-free in the Widget: Gtk component
Sandbox escape due to use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
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Critical 9.6
Sandbox escape due to incorrect boundary conditions in the XPCOM component
Sandbox escape due to incorrect boundary conditions in the XPCOM component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
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Critical 9.6
Sandbox escape due to incorrect boundary conditions in the Networking component
Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44.
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Critical 9.6
Sandbox escape due to uninitialized memory in the DOM: Web Serial component
Sandbox escape due to uninitialized memory in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Critical 9.1
Stanza injection in XMPP chat
Thunderbird did not escape attribute values when serializing outgoing XMPP stanzas. Because values from incoming requests were echoed back in automatic replies, a remote XMPP user could send a crafted request that caused Thunderbird to inject arbitrary stanza…
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High 8.8
Privilege escalation in the Application Update component
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.8
Information disclosure, privilege escalation in the Security: Process Sandboxing component
Information disclosure, privilege escalation in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.8
Integer overflow in the Graphics component
Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.8
Privilege escalation in the Panning and Zooming component
Privilege escalation in the Panning and Zooming component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.8
Privilege escalation in the DOM: Navigation component
Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.8
Incorrect boundary conditions in the SVG component
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.8
Privilege escalation in the WebExtensions component
Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.6
Denial-of-service in the Exchange email component
A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbi…
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High 8.3
Sandbox escape due to race condition in the Networking component
Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.3
Mitigation bypass in the File Handling component
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.
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High 8.3
Mitigation bypass in the File Handling component
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.
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High 8.1CVE-2026-109715 Public exploit
Incorrect boundary conditions in the JavaScript Engine component
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Incorrect boundary conditions in the JavaScript Engine component
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1CVE-2026-109722 Public exploit
JIT miscompilation in the JavaScript Engine: JIT component
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
JIT miscompilation in the JavaScript Engine: JIT component
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Mitigation bypass in the DOM: Security component
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Frame poisoning in the Layout component
Frame poisoning in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.45.
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High 8.1
Mitigation bypass in the Enterprise Policies component
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Other issue in the DOM: File component
Other issue in the DOM: File component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Incorrect boundary conditions in the Layout component
Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Incorrect boundary conditions in the DOM: Editor component
Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Site isolation issue in the Networking component
Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Mitigation bypass in the Networking: HTTP component
Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 8.1
Mitigation bypass in the Enterprise Policies component
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 7.5
Expat before 2.8.5 Malformed UTF-16 Acceptance via Unchecked Surrogate
Expat before 2.8.5 fails to validate that a high surrogate in UTF-16 input is followed by a low surrogate, allowing malformed UTF-16 sequences to be accepted. Attackers can supply UTF-16 encoded XML containing lone high surrogates that consume the following c…
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High 7.1
Sandbox escape due to uninitialized memory in the Graphics component
Sandbox escape due to uninitialized memory in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 7.1
JIT miscompilation in the JavaScript: WebAssembly component
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 6.5
Denial-of-service in the WebRTC component
Denial-of-service in the WebRTC component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 6.5
Denial-of-service in the Printing: Output component
Denial-of-service in the Printing: Output component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 6.3
Heap buffer overflow opening large email
An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4.
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Medium 6.1
Spoofing issue in the DOM: Web Serial component
Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.9
libexpat 2.7.2 through 2.8.5 Integer Overflow in expat_realloc
libexpat versions 2.7.2 through 2.8.5 contain an integer overflow vulnerability in expat_realloc() function on 32-bit platforms when computing allocation sizes. Attackers supplying malicious XML to applications parsing with vulnerable libexpat can cause heap …
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Medium 5.9
Account password sent unencrypted during Exchange account setup
When setting up an account, Thunderbird's Exchange AutoDiscover lookup also queried the domain's AutoDiscover service over plain HTTP. Due to a bug, that unencrypted request included the credentials the user had entered, allowing a network attacker to obtain …
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Medium 5.4
Use-after-free in the Storage: IndexedDB component
Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the Graphics: Text component
Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the Graphics: Canvas2D component
Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the Crash Reporting component
Use-after-free in the Crash Reporting component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the DOM: Bindings (WebIDL) component
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the XML component
Use-after-free in the XML component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4CVE-2026-109721 Public exploit
Incorrect boundary conditions in the JavaScript Engine: JIT component
Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Integer overflow in the Layout: Text and Fonts component
Integer overflow in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the DOM: Core & HTML component
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the DOM: Core & HTML component
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the SVG component
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the Audio/Video component
Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the DOM: Animation component
Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the JavaScript Engine: JIT component
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Incorrect boundary conditions in the Graphics: Canvas2D component
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the DOM: Streams component
Use-after-free in the DOM: Streams component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the Audio/Video: Playback component
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the Storage: Bucket File System component
Use-after-free in the Storage: Bucket File System component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Use-after-free in the DOM: Workers component
Use-after-free in the DOM: Workers component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Mitigation bypass in the File Handling component
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.4
Mitigation bypass in the Enterprise Policies component
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 5.3
Uninitialized memory disclosure and out-of-bounds read in POP3 and SMTP NTLM authentication
When authenticating to a POP3 or SMTP server using NTLM, Thunderbird did not check whether the server's challenge was valid base64. A malicious server could send a challenge that caused Thunderbird to include uninitialized heap memory in its NTLM response, di…
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Medium 4.3
Information disclosure in the PDF Viewer component
Information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 4.3
Information disclosure in the Networking component
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 4.3
Information disclosure in the Networking component
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 4.3
Information disclosure in the Storage: IndexedDB component
Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 4.2
Race condition, use-after-free in the Graphics: CanvasWebGL component
Race condition, use-after-free in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 4.2
Race condition, use-after-free in the Graphics: Text component
Race condition, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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Medium 4.2
Race condition in the XPCOM component
Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-100762.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-100770.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-100778.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-100786.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-100811.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-100818.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-100819.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-102633.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-103500.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109704.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109706.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109708.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109709.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109710.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109711.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109712.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109713.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109715.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109716.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109717.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109718.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109719.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109720.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109721.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109722.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109723.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109724.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109725.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109726.html
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-109727.html