{"id":"UBUNTU-CVE-2026-61626","details":"[GHSA-5gf7-wjfm-vmvm: Out-of-bounds bit clears for negative Matroska ReadOrder values]","modified":"2026-09-17T13:30:06.355818094Z","published":"2026-07-14T00:00:00Z","upstream":["CVE-2026-61626"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-61626"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-61626"},{"type":"REPORT","url":"https://github.com/libass/libass/security/advisories/GHSA-5gf7-wjfm-vmvm"},{"type":"REPORT","url":"https://github.com/libass/libass/issues/937"}],"affected":[{"package":{"name":"libass","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libass?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.17.3-1","1:0.17.4-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1:0.17.4-2","binary_name":"libass9"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61626.json"}}],"schema_version":"1.9.0","severity":[{"type":"Ubuntu","score":"medium"}]}