Inefficient Regular Expression Complexity The advisory has been revoked - it doesn't affect any version of package yarnpkg (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-YARNPKG-21265711
- published20 Oct 2026
- disclosed19 Oct 2026
Introduced: 19 Oct 2026
NewCVE-2026-112366 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream yarnpkg package and not the yarnpkg package as distributed by RHEL.
Picomatch through 4.0.7 contains a regular expression denial of service vulnerability that allows attackers to block the event loop by supplying single-branch repeated extglob patterns. Attackers can provide globs like +(*) or +(*a), which analyzeRepeatedExtglob in lib/parse.js skips, causing exponential backtracking against short crafted strings and denying service to Node.js applications.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2555667
- https://access.redhat.com/security/cve/CVE-2026-112366
- https://github.com/micromatch/picomatch/blob/4.0.7/lib/parse.js#L287-L307
- https://github.com/micromatch/picomatch/pull/194
- https://www.vulncheck.com/advisories/picomatch-through-4.0.7-redos-via-single-branch-repeated-extglob-patterns