Inefficient Regular Expression Complexity Affecting nodejs:22/v8-12.4-devel package, versions <3:12.4.254.21-1.22.22.2.1.module_el8.10.0+4158+e796f37f


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.52% (40th percentile)

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  • Snyk IDSNYK-ALMALINUX8-NODEJS-16089288
  • published16 Apr 2026
  • disclosed13 Apr 2026

Introduced: 13 Apr 2026

CVE-2026-26996  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 nodejs:22/v8-12.4-devel to version 3:12.4.254.21-1.22.22.2.1.module_el8.10.0+4158+e796f37f or higher.
This issue was patched in ALSA-2026:7123.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs:22/v8-12.4-devel package and not the nodejs:22/v8-12.4-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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 by a literal character that doesn't appear in the test string. Each * compiles to a separate [^/]*? regex group, and when the match fails, V8's regex engine backtracks exponentially across all possible splits. The time complexity is O(4^N) where N is the number of * characters. With N=15, a single minimatch() call takes ~2 seconds. With N=34, it hangs effectively forever. Any application that passes user-controlled strings to minimatch() as the pattern argument is vulnerable to DoS. This issue has been fixed in version 10.2.1.

CVSS Base Scores

version 3.1