Red Hat Security Advisory: nodejs24 security update
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): * nodejs: Nodejs denial of service (CVE-2026-21637) * brace-expansion: brace-expansion: Denial of Service via unbounded brace range expansion (CVE-2026-25547) * minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996) * undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581) * undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527) * undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526) * undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229) * undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525) * undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528) * nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135) * Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712) * Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710) * Node.js: Node.js: Information disclosure due to `fs.realpathSync.native()` bypassing filesystem read restrictions (CVE-2026-21715) * nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716) * Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711) * Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713) * Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714) * nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717) 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.
AI Analysis
Technical Summary
This Red Hat security advisory (RHSA-2026:7675) addresses multiple vulnerabilities in nodejs24 packages for Red Hat Enterprise Linux 10. The advisory covers 18 CVEs including denial of service vulnerabilities in Node.js core, undici HTTP client, nghttp2 HTTP/2 library, and related modules such as brace-expansion and minimatch. Other issues include HTTP header injection, request smuggling, information disclosure via timing or filesystem bypass, permission bypass allowing unauthorized file permission changes, and missing Unix Domain Socket permission checks leading to unauthorized inter-process communication. The vulnerabilities stem from unbounded resource consumption, malformed input handling, predictable hash collisions in V8, and incomplete security fixes. The advisory provides updated packages to fix these issues and recommends applying the update to affected systems.
Potential Impact
The vulnerabilities collectively can cause denial of service conditions through resource exhaustion, malformed input processing, and protocol manipulation. Some issues allow information disclosure via timing or filesystem access bypasses. There is also a permission bypass vulnerability that could allow unauthorized modification of file permissions and ownership. Additionally, missing permission checks on Unix Domain Sockets can lead to unauthorized inter-process communication. HTTP request smuggling and header injection vulnerabilities may enable manipulation of HTTP requests. These impacts can degrade system availability, compromise data confidentiality, and weaken security controls on affected Node.js environments.
Mitigation Recommendations
Red Hat has released an official security update for nodejs24 on Red Hat Enterprise Linux 10 that addresses all listed vulnerabilities. Users should apply this update promptly following Red Hat's guidance at https://access.redhat.com/articles/11258 to remediate the issues. No additional mitigations are specified or required beyond applying the official patch. Patch status is confirmed by the vendor advisory.
Red Hat Security Advisory: nodejs24 security update
Description
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): * nodejs: Nodejs denial of service (CVE-2026-21637) * brace-expansion: brace-expansion: Denial of Service via unbounded brace range expansion (CVE-2026-25547) * minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996) * undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581) * undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527) * undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526) * undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229) * undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525) * undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528) * nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135) * Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712) * Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710) * Node.js: Node.js: Information disclosure due to `fs.realpathSync.native()` bypassing filesystem read restrictions (CVE-2026-21715) * nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716) * Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711) * Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713) * Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714) * nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717) 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.
Affected software
pkg:rpm/redhat/nodejs24-npmRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This Red Hat security advisory (RHSA-2026:7675) addresses multiple vulnerabilities in nodejs24 packages for Red Hat Enterprise Linux 10. The advisory covers 18 CVEs including denial of service vulnerabilities in Node.js core, undici HTTP client, nghttp2 HTTP/2 library, and related modules such as brace-expansion and minimatch. Other issues include HTTP header injection, request smuggling, information disclosure via timing or filesystem bypass, permission bypass allowing unauthorized file permission changes, and missing Unix Domain Socket permission checks leading to unauthorized inter-process communication. The vulnerabilities stem from unbounded resource consumption, malformed input handling, predictable hash collisions in V8, and incomplete security fixes. The advisory provides updated packages to fix these issues and recommends applying the update to affected systems.
Potential Impact
The vulnerabilities collectively can cause denial of service conditions through resource exhaustion, malformed input processing, and protocol manipulation. Some issues allow information disclosure via timing or filesystem access bypasses. There is also a permission bypass vulnerability that could allow unauthorized modification of file permissions and ownership. Additionally, missing permission checks on Unix Domain Sockets can lead to unauthorized inter-process communication. HTTP request smuggling and header injection vulnerabilities may enable manipulation of HTTP requests. These impacts can degrade system availability, compromise data confidentiality, and weaken security controls on affected Node.js environments.
Mitigation Recommendations
Red Hat has released an official security update for nodejs24 on Red Hat Enterprise Linux 10 that addresses all listed vulnerabilities. Users should apply this update promptly following Red Hat's guidance at https://access.redhat.com/articles/11258 to remediate the issues. No additional mitigations are specified or required beyond applying the official patch. Patch status is confirmed by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:7675
- Cve Count
- 18
- Additional Cves
- ["CVE-2026-1526","CVE-2026-1527","CVE-2026-1528","CVE-2026-2229","CVE-2026-2581","CVE-2026-21637","CVE-2026-21710","CVE-2026-21711","CVE-2026-21712","CVE-2026-21713","CVE-2026-21714","CVE-2026-21715","CVE-2026-21716","CVE-2026-21717","CVE-2026-25547","CVE-2026-26996","CVE-2026-27135"]
Threat ID: 6a160983e29bf47b5064feaa
Added to database: 05/26/2026, 20:58:43 UTC
Last enriched: 08/10/2026, 20:29:02 UTC
Last updated: 09/14/2026, 22:01:32 UTC
Views: 133
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