Inefficient Regular Expression Complexity Affecting nodejs-devel package, versions <1:20.20.2-1.module+el9.7.0+90874+6d84790f


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.52% (40th percentile)

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  • Snyk IDSNYK-ORACLE9-NODEJSDEVEL-16001653
  • published13 Apr 2026
  • disclosed20 Feb 2026

Introduced: 20 Feb 2026

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

How to fix?

Upgrade Oracle:9 nodejs-devel to version 1:20.20.2-1.module+el9.7.0+90874+6d84790f or higher.
This issue was patched in ELSA-2026-7896.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs-devel package and not the nodejs-devel package as distributed by Oracle. See How to fix? for Oracle:9 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