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Update dependency minimatch to v3.1.3 [SECURITY]#1164

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ecraig12345 merged 1 commit intomainfrom
renovate/npm-minimatch-vulnerability
Feb 25, 2026
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Update dependency minimatch to v3.1.3 [SECURITY]#1164
ecraig12345 merged 1 commit intomainfrom
renovate/npm-minimatch-vulnerability

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@renovate renovate bot commented Feb 25, 2026

This PR contains the following updates:

Package Change Age Confidence
minimatch 3.1.23.1.3 age confidence

GitHub Vulnerability Alerts

CVE-2026-26996

Summary

minimatch is 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.

Details

Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer.

PoC

When minimatch compiles a glob pattern, each * becomes [^/]*? in the generated regex. For a pattern like ***************X***:

/^(?!\.)[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?[^/]*?X[^/]*?[^/]*?[^/]*?$/

When the test string doesn't contain X, the regex engine must try every possible way to distribute the characters across all the [^/]*? groups before concluding no match exists. With N groups and M characters, this is O(C(N+M, N)) — exponential.

Impact

Any application that passes user-controlled strings to minimatch() as the pattern argument is vulnerable to DoS. This includes:

  • File search/filter UIs that accept glob patterns
  • .gitignore-style filtering with user-defined rules
  • Build tools that accept glob configuration
  • Any API that exposes glob matching to untrusted input

Thanks to @​ljharb for back-porting the fix to legacy versions of minimatch.


Release Notes

isaacs/minimatch (minimatch)

v3.1.3

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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot added the renovate label Feb 25, 2026
@ecraig12345 ecraig12345 merged commit cb45432 into main Feb 25, 2026
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@ecraig12345 ecraig12345 deleted the renovate/npm-minimatch-vulnerability branch February 25, 2026 11:00
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