{"id":"CVE-2026-102278","title":"The brace-expansion library generates arbitrary strings containing a common prefix and suffix","summary":"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 si…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400","CWE-674"],"vendor":"juliangruber","product":"brace-expansion","affected":["brace-expansion >= 4.0.0, < 5.0.11","brace-expansion >= 3.0.0, < 3.0.8","brace-expansion >= 2.0.0, < 2.1.6","brace-expansion < 1.1.20"],"published":"2026-09-28","updated":"2026-09-28","sourceUpdated":"2026-09-28T21:17:16.517","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102278","references":[{"url":"https://github.com/juliangruber/brace-expansion/commit/1efee7c397c191da6287a78ec19512476a966a7b","label":"security-advisories@github.com"},{"url":"https://github.com/juliangruber/brace-expansion/commit/935d78f32f335b2ff76578e5c5e877d31ae9888c","label":"security-advisories@github.com"},{"url":"https://github.com/juliangruber/brace-expansion/commit/de84f144e9816f30e25fc8179e2e1249ab6df0db","label":"security-advisories@github.com"},{"url":"https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-qhr7-859c-m2p7","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-28T21:20:54.784Z","slug":"CVE-2026-102278","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}