{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102278", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-28T20:11:16.659Z", "datePublished": "2026-09-28T20:57:09.850Z", "dateUpdated": "2026-09-28T20:57:09.850Z"}, "containers": {"cna": {"title": "brace-expansion: DoS via uncontrolled recursion on nested brace groups causing stack exhaustion", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-674", "lang": "en", "description": "CWE-674: Uncontrolled Recursion", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-qhr7-859c-m2p7", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-qhr7-859c-m2p7"}, {"name": "https://github.com/juliangruber/brace-expansion/commit/1efee7c397c191da6287a78ec19512476a966a7b", "tags": ["x_refsource_MISC"], "url": "https://github.com/juliangruber/brace-expansion/commit/1efee7c397c191da6287a78ec19512476a966a7b"}, {"name": "https://github.com/juliangruber/brace-expansion/commit/935d78f32f335b2ff76578e5c5e877d31ae9888c", "tags": ["x_refsource_MISC"], "url": "https://github.com/juliangruber/brace-expansion/commit/935d78f32f335b2ff76578e5c5e877d31ae9888c"}, {"name": "https://github.com/juliangruber/brace-expansion/commit/de84f144e9816f30e25fc8179e2e1249ab6df0db", "tags": ["x_refsource_MISC"], "url": "https://github.com/juliangruber/brace-expansion/commit/de84f144e9816f30e25fc8179e2e1249ab6df0db"}], "affected": [{"vendor": "juliangruber", "product": "brace-expansion", "versions": [{"version": ">= 4.0.0, < 5.0.11", "status": "affected"}, {"version": ">= 3.0.0, < 3.0.8", "status": "affected"}, {"version": ">= 2.0.0, < 2.1.6", "status": "affected"}, {"version": "< 1.1.20", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-28T20:57:09.850Z"}, "descriptions": [{"lang": "en", "value": "The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.20, 2.1.6, 3.0.8, and 5.0.11, deeply nested brace groups cause expand_() to recurse once per nesting level at comma-member and single-set expansion sites, exhausting the native stack before output limits can apply and potentially terminating the Node.js process. expand_ performs uncontrolled recursion for nested brace alternatives and single-part sets. deeply nested brace groups supplied as an untrusted pattern. expand_ is affected. expand is affected. Comma members is affected. Single set is affected. native stack exhaustion during nested sub-expansion. process-terminating denial of service. This issue is fixed in versions 1.1.20, 2.1.6, 3.0.8, and 5.0.11."}], "source": {"advisory": "GHSA-qhr7-859c-m2p7", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "brace-expansion", "vendor": "juliangruber", "versions": [{"status": "affected", "version": ">= 4.0.0, < 5.0.11"}, {"status": "affected", "version": ">= 3.0.0, < 3.0.8"}, {"status": "affected", "version": ">= 2.0.0, < 2.1.6"}, {"status": "affected", "version": "< 1.1.20"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.20, 2.1.6, 3.0.8, and 5.0.11, deeply nested brace groups cause expand_() to recurse once per nesting level at comma-member and single-set expansion sites, exhausting the native stack before output limits can apply and potentially terminating the Node.js process. expand_ performs uncontrolled recursion for nested brace alternatives and single-part sets. deeply nested brace groups supplied as an untrusted pattern. expand_ is affected. expand is affected. Comma members is affected. Single set is affected. native stack exhaustion during nested sub-expansion. process-terminating denial of service. This issue is fixed in versions 1.1.20, 2.1.6, 3.0.8, and 5.0.11."}], "id": "CVE-2026-102278", "lastModified": "2026-09-28T21:17:16.517", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-28T21:17:16.517", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/juliangruber/brace-expansion/commit/1efee7c397c191da6287a78ec19512476a966a7b"}, {"source": "security-advisories@github.com", "url": "https://github.com/juliangruber/brace-expansion/commit/935d78f32f335b2ff76578e5c5e877d31ae9888c"}, {"source": "security-advisories@github.com", "url": "https://github.com/juliangruber/brace-expansion/commit/de84f144e9816f30e25fc8179e2e1249ab6df0db"}, {"source": "security-advisories@github.com", "url": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-qhr7-859c-m2p7"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-674"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,5.0.11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.0.0,3.0.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.0,2.1.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.1.20)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "brace-expansion", "source": "cna", "vendor": "juliangruber"}, "product": "brace-expansion", "vendor": "juliangruber"}], "created": "2026-09-28T22:30:08.183872+00:00", "updated": "2026-09-28T23:00:07.181369+00:00", "vendors": ["juliangruber", "juliangruber$PRODUCT$brace-expansion"]}