{"id":"DEBIAN-CVE-2026-25547","details":"@isaacs/brace-expansion is a hybrid CJS/ESM TypeScript fork of brace-expansion. Prior to version 5.0.1, @isaacs/brace-expansion is vulnerable to a denial of service (DoS) issue caused by unbounded brace range expansion. When an attacker provides a pattern containing repeated numeric brace ranges, the library attempts to eagerly generate every possible combination synchronously. Because the expansion grows exponentially, even a small input can consume excessive CPU and memory and may crash the Node.js process. This issue has been patched in version 5.0.1.","modified":"2026-04-08T05:01:14.058238Z","published":"2026-02-04T22:16:00.813Z","upstream":["CVE-2026-25547"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-25547"}],"affected":[{"package":{"name":"node-brace-expansion","ecosystem":"Debian:11","purl":"pkg:deb/debian/node-brace-expansion?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.0-1","2.0.1+~1.1.0-1","2.0.1+~1.1.0-2","2.0.1-1","2.0.1-2","2.0.3+~1.1.2-1","2.0.3+~1.1.2-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25547.json"}},{"package":{"name":"node-brace-expansion","ecosystem":"Debian:12","purl":"pkg:deb/debian/node-brace-expansion?arch=source"},"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"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25547.json"}},{"package":{"name":"node-brace-expansion","ecosystem":"Debian:13","purl":"pkg:deb/debian/node-brace-expansion?arch=source"},"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"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25547.json"}},{"package":{"name":"node-brace-expansion","ecosystem":"Debian:14","purl":"pkg:deb/debian/node-brace-expansion?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.3+~1.1.2-2"}]}],"versions":["2.0.1+~1.1.0-2","2.0.3+~1.1.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25547.json"}}],"schema_version":"1.7.5","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:H/E:X/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:X/AU:X/R:X/V:X/RE:X/U:X"}]}