Summary
Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.
Security Fix(es):
* nodejs: Node.js: Unauthorized filesystem access due to Permission Model enforcement flaw (CVE-2026-58043)
* nodejs: Node.js: Remote memory exhaustion via HTTP/2 retained header blocks (CVE-2026-56846)
* nodejs: Node.js: Heap-use-after-free in HTTP/2 handling can lead to denial of service (CVE-2026-56848)
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 10
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 9 | nodejs | 1:22.23.2-1.module_el9.8.0+302+959ebcd4 |
| AlmaLinux · 9 | nodejs-devel | 1:22.23.2-1.module_el9.8.0+302+959ebcd4 |
| AlmaLinux · 9 | nodejs-docs | 1:22.23.2-1.module_el9.8.0+302+959ebcd4 |
| AlmaLinux · 9 | nodejs-full-i18n | 1:22.23.2-1.module_el9.8.0+302+959ebcd4 |
| AlmaLinux · 9 | nodejs-libs | 1:22.23.2-1.module_el9.8.0+302+959ebcd4 |
| AlmaLinux · 9 | nodejs-nodemon | 3.1.14-2.module_el9.8.0+291+0bb98cce |
| AlmaLinux · 9 | nodejs-packaging | 2021.06-6.module_el9.7.0+227+12323393 |
| AlmaLinux · 9 | nodejs-packaging-bundler | 2021.06-6.module_el9.7.0+227+12323393 |
| AlmaLinux · 9 | npm | 1:10.9.8-1.22.23.2.1.module_el9.8.0+302+959ebcd4 |
| AlmaLinux · 9 | v8-12.4-devel | 3:12.4.254.21-1.22.23.2.1.module_el9.8.0+302+959ebcd4 |
Vulnerabilities 10
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High 7.5CVE-2026-56846 Public exploit
A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemory and enable remote memo…
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High 7.5CVE-2026-56848 Public exploit
A flaw in Node.js HTTP/2 handling allows `nghttp2_session_mem_send()` to be called re-entrantly while `nghttp2_session_…
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High 7.5CVE-2026-58043 Public exploit
A flaw in Node.js Permission Model enforcement can over-grant filesystem access across radix-tree prefix boundaries. Un…
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Medium 6.3CVE-2026-58040 Public exploit
An incomplete fix has been identified in Node.js: HTTPS Agent TLS session reuse skips hostname verification across iden…
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Medium 6.2CVE-2026-58045 Public exploit
A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in the synchronous `node:…
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Medium 5.9CVE-2026-58042 Public exploit
A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A Re…
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Medium 4.1CVE-2026-56850 Public exploit
A flaw in Node.js HTTPS Agent connection reuse can cause PFX object-array key collisions, allowing mutual TLS (mTLS) cl…
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Low 3.7CVE-2026-58044 Public exploit
A flaw in Node.js HTTP client can cause a request desynchronization for Node.js-based forwarding proxies that rebuild o…
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Low 3.3CVE-2026-56847 Public exploit
A flaw in Node.js Permission Model enforcement allows `trace_events.createTracing().enable()` Writes Trace Logs Outside…
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Low 3.3CVE-2026-58039 Public exploit
A flaw in Node.js Permission Model enforcement allows process.report writes (and overwrites) files outside --allow-fs-w…
References
-
report
https://access.redhat.com/security/cve/CVE-2026-56846
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report
https://access.redhat.com/security/cve/CVE-2026-56848
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report
https://access.redhat.com/security/cve/CVE-2026-58043
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report
https://bugzilla.redhat.com/2509171
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report
https://bugzilla.redhat.com/2510856
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advisory
https://errata.almalinux.org/9/ALSA-2026-61383.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-56847.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-56850.html
-
report
https://www.redhat.com/security/data/cve/CVE-2026-58039.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-58040.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-58042.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-58044.html
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report
https://www.redhat.com/security/data/cve/CVE-2026-58045.html