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High RLSA-2026:7123 9 CVEs

Important: nodejs:22 security update

Published Apr 9, 2026 · Updated Apr 9, 2026

Ecosystem: Rocky Linux

Summary

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.

Security Fix(es):

* 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)

* minimatch: Minimatch: Denial of Service via catastrophic backtracking in glob expressions (CVE-2026-27904)

* 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 due to crafted HTTP `__proto__` header (CVE-2026-21710)

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

ReleasePackageFixed in
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.10.0+1666+930e28e8
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.9.0+1760+903d54b9
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.10.0+1667+4a788d89
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.10.0+1823+b5789597
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.10.0+1924+614dc87f
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.10.0+1988+437f3d23
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.10.0+1824+532140ee
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.10.0+1935+d3cbe60f
Rocky Linux · 8 nodejs-nodemon 0:3.0.1-1.module+el8.10.0+1989+e60144d9
Rocky Linux · 8 nodejs-packaging 0:2021.06-6.module+el8.10.0+40048+6d99f608

Vulnerabilities 9

  • Critical 9.2
    CVE-2026-25547

    Uncontrolled Resource Consumption in @isaacs/brace-expansion

    @isaacs/brace-expansion is a hybrid CJS/ESM TypeScript fork of brace-expansion. Prior to version 5.0.1, @isaacs/brace-expansion is vulnerable to a denial of service (DoS) issue caused by unbounded brace range expansion. When an attacker provides a pattern con…

    isaacs brace-expansion renovate lerna Debian Ubuntu Wolfi npm
  • High 8.7
    CVE-2026-26996

    minimatch has a ReDoS via repeated wildcards with non-matching literal in pattern

    minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Versions 10.2.0 and below are vulnerable to Regular Expression Denial of Service (ReDoS) when a glob pattern contains many consecutive * wildcards followed…

    isaacs minimatch langfuse-3-worker katib-suggestion-hyperopt Debian Ubuntu Wolfi npm
  • High 7.5
    CVE-2026-1526

    undici is vulnerable to Unbounded Memory Consumption in undici WebSocket permessage-deflate Decompression

    The undici WebSocket client is vulnerable to a denial-of-service attack via unbounded memory consumption during permessage-deflate decompression. When a WebSocket connection negotiates the permessage-deflate extension, the client decompresses incoming compres…

    undici undici langfuse-3-worker renovate Debian Ubuntu Wolfi npm
  • High 7.5
    CVE-2026-1528

    undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client

    ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in …

    undici undici langfuse-3-worker renovate Debian Ubuntu Wolfi npm
  • High 7.5
    CVE-2026-21710 Public exploit EPSS 25%

    A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `…

    Node.js node nodejs nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • High 7.5
    CVE-2026-2229

    undici is vulnerable to Unhandled Exception in undici WebSocket Client Due to Invalid server_max_window_bits Validation

    ImpactThe undici WebSocket client is vulnerable to a denial-of-service attack due to improper validation of the server_max_window_bits parameter in the permessage-deflate extension. When a WebSocket client connects to a server, it automatically advertises sup…

    undici undici langfuse-3-worker renovate Debian Ubuntu Wolfi npm
  • High 7.5
    CVE-2026-27135

    nghttp2 Denial of service: Assertion failure due to the missing state validation

    nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2…

    nghttp2 nghttp2 nodejs cmake Debian Ubuntu Azure Linux Alpine
  • High 7.5
    CVE-2026-27904

    minimatch ReDoS: nested *() extglobs generate catastrophically backtracking regular expressions

    minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Prior to version 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4, nested `*()` extglobs produce regexps with nested unbounded quantifiers (e.g.…

    isaacs minimatch katib-suggestion-hyperopt katib-earlystopping Debian Ubuntu Wolfi npm
  • Medium 6.5
    CVE-2026-1525

    undici is vulnerable to Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

    Undici allows duplicate HTTP Content-Length headers when they are provided in an array with case-variant names (e.g., Content-Length and content-length). This produces malformed HTTP/1.1 requests with multiple conflicting Content-Length values on the wire. Wh…

    undici undici langfuse-3-worker renovate Debian Ubuntu Wolfi npm

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2436942
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2441268
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2442922
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2447142
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2447143
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2447144
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2447145
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2448754
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2453151