Summary
Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
Security Fix(es):
* ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input (CVE-2026-42338)
* undici: undici: Denial of Service due to unbounded memory growth via WebSocket frames (CVE-2026-12151)
* undici: Undici: Information disclosure due to improper cache-control header parsing (CVE-2026-9678)
* undici: Undici: Response queue poisoning on reused keep-alive sockets can lead to incorrect response delivery. (CVE-2026-6733)
* undici: undici: Weakening of cookie SameSite policy due to incorrect parsing of Set-Cookie header (CVE-2026-11525)
* undici: undici: Man-in-the-Middle attack via ignored TLS options with SOCKS5 proxy (CVE-2026-9697)
* undici: undici: Information disclosure and data integrity issues due to incorrect Socks5ProxyAgent connection routing (CVE-2026-6734)
* nodejs: Node.js: Denial of Service via unlimited HTTP/2 ORIGIN frames (CVE-2026-48619)
* nodejs: Node.js: Silent authority rebinding due to embedded-nul hostnames in TLS handling (CVE-2026-48930)
* nodejs: Node.js: Unauthorized file metadata modification (CVE-2026-48935)
* nodejs: Node.js WebCrypto: Denial of Service via large input to subtle.encrypt() (CVE-2026-48933)
* nodejs: Node.js: Certification validation bypass in TLS host verification (CVE-2026-48934)
* Node.js: Node.js: Trust-policy bypass due to hostname matching inconsistency (CVE-2026-48928)
* nodejs: Node.js: Information disclosure of proxy credentials via proxy tunnel error handling (CVE-2026-48615)
* nodejs: Node.js: Authentication bypass due to TLS hostname handling and unicode dot separator mismatch (CVE-2026-48618)
Bug Fix(es) and Enhancement(s):
* nodejs24: Rebase to the latest Node.js 24 release [almalinux-10.2.z] (JIRA:AlmaLinux-186582)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 10 | nodejs24 | 1:24.18.0-1.el10_2 |
| AlmaLinux · 10 | nodejs24-devel | 1:24.18.0-1.el10_2 |
| AlmaLinux · 10 | nodejs24-docs | 1:24.18.0-1.el10_2 |
| AlmaLinux · 10 | nodejs24-full-i18n | 1:24.18.0-1.el10_2 |
| AlmaLinux · 10 | nodejs24-libs | 1:24.18.0-1.el10_2 |
| AlmaLinux · 10 | nodejs24-npm | 1:11.16.0-1.24.18.0.1.el10_2 |
Vulnerabilities 18
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High 7.7
A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth…
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High 7.5
undici WebSocket client vulnerable to denial of service via fragment count bypass
Impact: The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream many small or empty continuation frames that ea…
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High 7.5
A flaw in Node.js WebCrypto implementation can crash the process if the input of `subtle.encrypt()` is a multiple of 2G…
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High 7.5
undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse
Impact: When using Socks5ProxyAgent, undici reuses a single connection pool across different origins without verifying that the pool's origin matches the requested origin. All requests are dispatched through the pool connected to the first origin, regardless …
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High 7.4
undici vulnerable to TLS certificate validation bypass via dropped requestTls in SOCKS5 ProxyAgent
Impact: undici's ProxyAgent silently drops the requestTls option when configured with a SOCKS5 proxy URI (socks5:// or socks://). The target HTTPS connection through the SOCKS5 tunnel falls back to Node's default trust store, ignoring user-configured ca, cert…
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Medium 5.9
A flaw in Node.js proxy tunnel error handling could expose proxy credentials in `ERR_PROXY_TUNNEL` error messages. When…
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Medium 5.9
undici vulnerable to cross-user information disclosure via shared cache whitespace bypass
Impact: Undici's cache interceptor incorrectly classifies some responses as cacheable when the upstream Cache-Control header uses whitespace-padded qualified private or no-cache field names such as private=" authorization" or no-cache="\tauthorization". The p…
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Medium 5.6
A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to …
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Medium 5.3
ip-address: XSS in Address6 HTML-emitting methods
ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.1.1, Address6.group() and Address6.link() do not HTML-escape attacker-controlled content before embedding it in the HTML strings they return, and AddressEr…
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Medium 5.3
A flaw in Node.js HTTP/2 client allows a server to send an unlimited number of ORIGIN frames, which could lead to an Ou…
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Medium 5.3
A flaw in Node.js HTTP/2 server API can cause servers to keep accepting data even after sending a `GOAWAY` frame. This …
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Medium 4.3
A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation. This vulnerability af…
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Medium 4.2
A inconsistency in Node.js hostname matching can cause a trust-policy bypass in multi-context mTLS setups. This vulnera…
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Low 3.7
undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching
Impact: When undici parses a Set-Cookie header, it accepts any SameSite attribute value that contains Strict, Lax, or None as a substring, rather than the case-insensitive exact match specified by RFC 6265. Non-spec values are silently mapped to one of the th…
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Low 3.7
A flaw in Node.js HTTP Agent can cause a client to accept as valid a response that is send before the client has sent t…
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Low 3.7
undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse
Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatch…
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Low 3.3
A flaw in Node.js Permission API can cause a file metadata to be modified even on a path that was set as read-only with…
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Low 1.8
A flaw in Node.js Permission Model enforcement allows Bypass via `process.report.writeReport()` Path Misvalidation. Thi…
References
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report
https://access.redhat.com/security/cve/CVE-2026-11525
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report
https://access.redhat.com/security/cve/CVE-2026-12151
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report
https://access.redhat.com/security/cve/CVE-2026-42338
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report
https://access.redhat.com/security/cve/CVE-2026-48615
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report
https://access.redhat.com/security/cve/CVE-2026-48618
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report
https://access.redhat.com/security/cve/CVE-2026-48619
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report
https://access.redhat.com/security/cve/CVE-2026-48928
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report
https://access.redhat.com/security/cve/CVE-2026-48930
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report
https://access.redhat.com/security/cve/CVE-2026-48933
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report
https://access.redhat.com/security/cve/CVE-2026-48934
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report
https://access.redhat.com/security/cve/CVE-2026-48935
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report
https://access.redhat.com/security/cve/CVE-2026-6733
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report
https://access.redhat.com/security/cve/CVE-2026-6734
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report
https://access.redhat.com/security/cve/CVE-2026-9678
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report
https://access.redhat.com/security/cve/CVE-2026-9697
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report
https://bugzilla.redhat.com/2476810
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report
https://bugzilla.redhat.com/2489980
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report
https://bugzilla.redhat.com/2490000
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report
https://bugzilla.redhat.com/2490006
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report
https://bugzilla.redhat.com/2490008
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report
https://bugzilla.redhat.com/2490018
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report
https://bugzilla.redhat.com/2490024
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report
https://bugzilla.redhat.com/2493325
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report
https://bugzilla.redhat.com/2493326
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report
https://bugzilla.redhat.com/2493329
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report
https://bugzilla.redhat.com/2493331
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report
https://bugzilla.redhat.com/2493332
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report
https://bugzilla.redhat.com/2493333
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report
https://bugzilla.redhat.com/2493335
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report
https://bugzilla.redhat.com/2493337
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advisory
https://errata.almalinux.org/10/ALSA-2026-35841.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-48617.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-48931.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-48937.html