{"cve":"CVE-2026-27903","nvd":{"published":"2026-02-26T02:16:21.353","modified":"2026-06-17T10:27:51.187","status":"Analyzed","description":"minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Prior to version 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.3, `matchOne()` performs unbounded recursive backtracking when a glob pattern contains multiple non-adjacent `**` (GLOBSTAR) segments and the input path does not match. The time complexity is O(C(n, k)) -- binomial -- where `n` is the number of path segments and `k` is the number of globstars. With k=11 and n=30, a call to the default `minimatch()` API stalls for roughly 5 seconds. With k=13, it exceeds 15 seconds. No memoization or call budget exists to bound this behavior. Any application where an attacker can influence the glob pattern passed to `minimatch()` is vulnerable. The realistic attack surface includes build tools and task runners that accept user-supplied glob arguments (ESLint, Webpack, Rollup config), multi-tenant systems where one tenant configures glob-based rules that run in a shared process, admin or developer interfaces that accept ignore-rule or filter configuration as globs, and CI/CD pipelines that evaluate user-submitted config files containing glob patterns. An attacker who can place a crafted pattern into any of these paths can stall the Node.js event loop for tens of seconds per invocation. The pattern is 56 bytes for a 5-second stall and does not require authentication in contexts where pattern input is part of the feature. Versions 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.3 fix the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-407"],"references":["https://github.com/isaacs/minimatch/security/advisories/GHSA-7r86-cg39-jmmj"],"products":["minimatch_project:minimatch"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-27903","score":0.00576,"percentile":0.47498,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7r86-cg39-jmmj","url":"https://osv.dev/vulnerability/GHSA-7r86-cg39-jmmj","summary":"minimatch has ReDoS: matchOne() combinatorial backtracking via multiple non-adjacent GLOBSTAR segments","modified":"2026-09-10T03:50:34.376990726Z","packages":[{"ecosystem":"npm","name":"minimatch","purl":"pkg:npm/minimatch","ranges":[">=10.0.0 <10.2.3"],"fixed":["10.2.3"]},{"ecosystem":"npm","name":"minimatch","purl":"pkg:npm/minimatch","ranges":[">=9.0.0 <9.0.7"],"fixed":["9.0.7"]},{"ecosystem":"npm","name":"minimatch","purl":"pkg:npm/minimatch","ranges":[">=8.0.0 <8.0.6"],"fixed":["8.0.6"]},{"ecosystem":"npm","name":"minimatch","purl":"pkg:npm/minimatch","ranges":[">=7.0.0 <7.4.8"],"fixed":["7.4.8"]},{"ecosystem":"npm","name":"minimatch","purl":"pkg:npm/minimatch","ranges":[">=6.0.0 <6.2.2"],"fixed":["6.2.2"]},{"ecosystem":"npm","name":"minimatch","purl":"pkg:npm/minimatch","ranges":[">=5.0.0 <5.1.8"],"fixed":["5.1.8"]},{"ecosystem":"npm","name":"minimatch","purl":"pkg:npm/minimatch","ranges":[">=4.0.0 <4.2.5"],"fixed":["4.2.5"]},{"ecosystem":"npm","name":"minimatch","purl":"pkg:npm/minimatch","ranges":["<3.1.3"],"fixed":["3.1.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}