{"cve":"CVE-2026-13149","nvd":{"published":"2026-06-30T10:16:34.560","modified":"2026-10-25T21:10:00.770","status":"Deferred","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.","cvss_v4":{"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/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","score":7.7},"cvss_v3":null,"cwes":["CWE-400","CWE-407"],"references":["https://github.com/juliangruber/brace-expansion/commit/c7e33ec13ac1a684c116720843ce24e208611754","https://www.npmjs.com/package/brace-expansion"],"products":[],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-13149","score":0.00364,"percentile":0.29949,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-3jxr-9vmj-r5cp","url":"https://osv.dev/vulnerability/GHSA-3jxr-9vmj-r5cp","summary":"brace-expansion: DoS via exponential-time expansion of consecutive non-expanding {} groups","modified":"2026-09-10T03:51:10.092354944Z","packages":[{"ecosystem":"npm","name":"brace-expansion","purl":"pkg:npm/brace-expansion","ranges":[">=3.0.0 <5.0.7"],"fixed":["5.0.7"]},{"ecosystem":"npm","name":"brace-expansion","purl":"pkg:npm/brace-expansion","ranges":["<1.1.16"],"fixed":["1.1.16"]},{"ecosystem":"npm","name":"brace-expansion","purl":"pkg:npm/brace-expansion","ranges":[">=2.0.0 <2.1.2"],"fixed":["2.1.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}