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):
* 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 1
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 10 | nodejs-docs | 1:22.22.2-1.el10_1 |
Vulnerabilities 9
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Critical 9.2
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…
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High 8.7
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…
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High 7.5
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…
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High 7.5
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 …
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High 7.5
A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `…
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High 7.5
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…
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High 7.5
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…
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High 7.5
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.…
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Medium 6.5
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…
References
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report
https://access.redhat.com/security/cve/CVE-2026-1525
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report
https://access.redhat.com/security/cve/CVE-2026-1526
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report
https://access.redhat.com/security/cve/CVE-2026-1528
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report
https://access.redhat.com/security/cve/CVE-2026-21710
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report
https://access.redhat.com/security/cve/CVE-2026-2229
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report
https://access.redhat.com/security/cve/CVE-2026-25547
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report
https://access.redhat.com/security/cve/CVE-2026-26996
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report
https://access.redhat.com/security/cve/CVE-2026-27135
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report
https://access.redhat.com/security/cve/CVE-2026-27904
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report
https://bugzilla.redhat.com/2436942
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report
https://bugzilla.redhat.com/2441268
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report
https://bugzilla.redhat.com/2442922
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report
https://bugzilla.redhat.com/2447142
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report
https://bugzilla.redhat.com/2447143
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report
https://bugzilla.redhat.com/2447144
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report
https://bugzilla.redhat.com/2447145
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report
https://bugzilla.redhat.com/2448754
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report
https://bugzilla.redhat.com/2453151
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advisory
https://errata.almalinux.org/10/ALSA-2026-7080.html