{"id":"UBUNTU-CVE-2026-27904","details":"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 3.1.4, nested `*()` extglobs produce regexps with nested unbounded quantifiers (e.g. `(?:(?:a|b)*)*`), which exhibit catastrophic backtracking in V8. With a 12-byte pattern `*(*(*(a|b)))` and an 18-byte non-matching input, `minimatch()` stalls for over 7 seconds. Adding a single nesting level or a few input characters pushes this to minutes. This is the most severe finding: it is triggered by the default `minimatch()` API with no special options, and the minimum viable pattern is only 12 bytes. The same issue affects `+()` extglobs equally. Versions 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4 fix the issue.","modified":"2026-05-20T16:24:52.621666017Z","published":"2026-02-26T02:16:00Z","upstream":["CVE-2026-27904"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-27904"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-27904"},{"type":"REPORT","url":"https://github.com/isaacs/minimatch/security/advisories/GHSA-23c5-xmqv-rm74"}],"affected":[{"package":{"name":"node-minimatch","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/node-minimatch?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.11-1","0.2.12-1","0.2.12-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.2.12-1ubuntu0.1~esm2","binary_name":"node-minimatch"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27904.json"}},{"package":{"name":"node-minimatch","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/node-minimatch?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0-1","1.0.0-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.0-1ubuntu0.1~esm2","binary_name":"node-minimatch"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27904.json"}},{"package":{"name":"node-minimatch","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/node-minimatch?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.4-1","3.0.4-3","3.0.4-3+deb10u1build0.18.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-minimatch","binary_version":"3.0.4-3+deb10u1build0.18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27904.json"}},{"package":{"name":"node-minimatch","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-minimatch?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.4-3","3.0.4-4","3.0.4-4ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-minimatch","binary_version":"3.0.4-4ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27904.json"}},{"package":{"name":"node-minimatch","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-minimatch?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.4+~3.0.3-1","3.0.4+~3.0.5-1","3.1.1+~3.0.5-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-minimatch","binary_version":"3.1.1+~3.0.5-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27904.json"}},{"package":{"name":"node-minimatch","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-minimatch?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.1.1+~5.1.2-1","9.0.3-4build5"],"ecosystem_specific":{"binaries":[{"binary_version":"9.0.3-4build5","binary_name":"node-minimatch"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27904.json"}},{"package":{"name":"node-minimatch","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/node-minimatch?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.0.3-5","9.0.3-6"],"ecosystem_specific":{"binaries":[{"binary_name":"node-minimatch","binary_version":"9.0.3-6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27904.json"}},{"package":{"name":"node-minimatch","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-minimatch?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.0.3-6"],"ecosystem_specific":{"binaries":[{"binary_version":"9.0.3-6","binary_name":"node-minimatch"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27904.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}