{"id":"CVE-2026-13149","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-13149","generatedAt":"2026-10-28T10:36:33.974Z","title":"brace-expansion through 5.0.6 is vulnerable to denial of service.","description":"brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.","published":"2026-06-30T10:16:35.000Z","lastModified":"2026-10-25T21:10:01.000Z","status":"Deferred","sourceIdentifier":"22e2d327-25fe-45d7-9f0c-dcd23b7108df","cvss":{"version":"4.0","score":7.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-400","CWE-407"],"affected":[],"epss":{"score":0.00364,"percentile":0.30047,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/juliangruber/brace-expansion/commit/c7e33ec13ac1a684c116720843ce24e208611754","source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df"},{"url":"https://www.npmjs.com/package/brace-expansion","source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-13149","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}