UID2-6838: upgrade path-to-regexp to fix CVE-2026-4926 (GHSA-j3q9-mxjg-w52f)#239
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BehnamMozafari merged 1 commit intomainfrom Mar 31, 2026
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Upgrades path-to-regexp from 8.2.0 to 8.4.1 to fix GHSA-j3q9-mxjg-w52f (CVE-2026-4926), a HIGH severity DoS vulnerability where sequential optional route groups cause exponential regex expansion. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
jon8787
approved these changes
Mar 31, 2026
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Summary
Upgrades
path-to-regexpfrom8.2.0→8.4.1to fix a HIGH severity DoS vulnerability.Vulnerability Details
path-to-regexpversions 8.0.0–8.3.x generate exponentially large regexes when route patterns contain multiple sequential optional groups (e.g.{a}{b}{c}:z). This causes uncontrolled resource consumption (CWE-400, CWE-1333), enabling a network-accessible DoS with no authentication required.This repo had
path-to-regexp@8.2.0locked inpackage-lock.json.Fix
Bumped the range from
^8.2.0to^8.4.0inpackage.json;npm installresolved to8.4.1.Testing
All 811 unit and integration tests pass locally.
Repo Scope
Only
IABTechLab/uid2-web-integrationsis affected. No other repos across IABTechLab, UnifiedID2, or European-Unified-ID usepath-to-regexpin the 8.x range.