{"schema_version":"1","data":[{"id":3973,"advisory_id":"7ceb433c-02c8-4e54-b8c5-a2cd1aa26dec","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102277","source_published_at":"2026-09-28T20:54:46.16+00:00","published_at":"2026-10-24T21:44:30.845205+00:00","extraction_method":"structured","technologies":["brace-expansion","core-cve"],"cve_ids":["CVE-2026-102277"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"brace-expansion: Quadratic-time expansion of the `{a},b}` rewrite causes CPU denial of service","summary":"The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.21, 2.1.7, 3.0.9, and 5.0.12, the expand function handles untrusted {a},b}-shaped patterns with many trailing closing braces by restarting its scan once for each trailing closing brace. The successive full-input rescans with linear working-string growth cause quadratic CPU time and memory pressure that can block the Node.js event loop. The process eventually recovers, making the impact a recoverable CPU denial of service. This issue is fixed in versions 1.1.21, 2.1.7, 3.0.9, and 5.0.12.","evidence":"cve:CVE-2026-102277","products":[{"name":{"value":"brace-expansion","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"medium","structured":{"id":"CVE-2026-102277","aliases":["CVE-2026-102277"],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"NONE","confidentialityImpact":"NONE"}}],"affected":[{"vendor":"juliangruber","product":"brace-expansion","versions":[{"status":"affected","version":">= 4.0.0, < 5.0.12"},{"status":"affected","version":">= 3.0.0, < 3.0.9"},{"status":"affected","version":">= 2.0.0, < 2.1.7"},{"status":"affected","version":"< 1.1.21"}]}],"modified":"2026-09-29T19:38:56.637Z","provider":"cve","references":["https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-q2hr-2g5m-vwhr","https://github.com/juliangruber/brace-expansion/commit/33a5ef17b8d800bbfa8c52b14c39043b6aac1a96","https://github.com/juliangruber/brace-expansion/commit/bdff773f98e5988616b7039cc9b508df5d640b22","https://github.com/juliangruber/brace-expansion/commit/c55e67d8d8b1c56a2474afff15c2891166b2d364","https://github.com/juliangruber/brace-expansion/commit/ffdfa3e3806bed17c0874b8f1439b084de354a7e"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-102277","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-29T19:38:46.678388Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-29T19:38:56.637Z"}}],"cna":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-28T20:54:46.160Z"}}},"related_cves":[{"value":"CVE-2026-102277","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"}}],"next_after":3973,"next_before":3973}