{"id":"DEBIAN-CVE-2026-13149","details":"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.","modified":"2026-09-01T16:06:27.881267882Z","published":"2026-06-30T10:16:34.560Z","upstream":["CVE-2026-13149"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-13149"}],"affected":[{"package":{"name":"node-brace-expansion","ecosystem":"Debian:12","purl":"pkg:deb/debian/node-brace-expansion?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.1+~1.1.0-1","2.0.1+~1.1.0-2","2.0.1-2","2.0.3+~1.1.2-1","2.0.3+~1.1.2-2","2.0.3+~1.1.2-3","2.1.4+~1.1.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13149.json"}},{"package":{"name":"node-brace-expansion","ecosystem":"Debian:13","purl":"pkg:deb/debian/node-brace-expansion?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.1+~1.1.0-2","2.0.3+~1.1.2-1","2.0.3+~1.1.2-2","2.0.3+~1.1.2-3","2.1.4+~1.1.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13149.json"}},{"package":{"name":"node-brace-expansion","ecosystem":"Debian:14","purl":"pkg:deb/debian/node-brace-expansion?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.1+~1.1.0-2","2.0.3+~1.1.2-1","2.0.3+~1.1.2-2","2.0.3+~1.1.2-3","2.1.4+~1.1.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13149.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:D/RE:M/U:Amber"}]}