CVE-2026-14257 Affecting nodejs:22/nodejs package, versions <1:22.23.1-3.module_el8.10.0+4251+b427b8a5


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.64% (50th percentile)

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  • Snyk IDSNYK-ALMALINUX8-NODEJS-19821891
  • published15 Sept 2026
  • disclosed17 Aug 2026

Introduced: 17 Aug 2026

CVE-2026-14257  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 nodejs:22/nodejs to version 1:22.23.1-3.module_el8.10.0+4251+b427b8a5 or higher.
This issue was patched in ALSA-2026:54530.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs:22/nodejs package and not the nodejs:22/nodejs package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

brace-expansion through 5.0.7 is vulnerable to denial of service via memory exhaustion. The expand() function limits the number of results with a max option (default 100,000) but does not bound the length of each result string. By chaining multiple brace groups, an attacker keeps the result count under the limit while making each result progressively longer, so total memory scales with both count and string length until the process hits a fatal, uncatchable out-of-memory error. About 7.5 KB of input ('{a,b}'.repeat(1500)) crashes a default Node.js process. Any application that passes attacker-influenced strings to brace-expansion.expand() - directly or transitively via minimatch / glob brace patterns - can be crashed by a small request. Fixed in 5.0.8 by adding a maxLength option (default 4,000,000) that bounds accumulated output and intermediate arrays.

CVSS Base Scores

version 3.1