{"id":"DEBIAN-CVE-2026-88341","details":"A reachable assertion vulnerability exists in YARA 4.5.8 when loading crafted .yrc compiled rule files. An attacker can provide a malicious file with an invalid arena configuration (num_buffers=0) that triggers an assertion failure in yr_arena_get_ptr(), causing the application to terminate.","modified":"2026-09-25T08:47:22.639105905Z","published":"2026-09-22T20:17:10.370Z","upstream":["CVE-2026-88341"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-88341"}],"affected":[{"package":{"name":"yara","ecosystem":"Debian:12","purl":"pkg:deb/debian/yara?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.3-4","4.3.0-1","4.3.2-1","4.4.0-1","4.5.0-1","4.5.0-1~bpo12+1","4.5.1-1","4.5.1-1~bpo12+1","4.5.2-1","4.5.2-1~bpo12+1","4.5.3-1","4.5.4-1","4.5.5-1","4.5.6-1","4.5.7-1","4.5.8-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88341.json"}},{"package":{"name":"yara","ecosystem":"Debian:13","purl":"pkg:deb/debian/yara?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.2-1","4.5.3-1","4.5.4-1","4.5.5-1","4.5.6-1","4.5.7-1","4.5.8-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88341.json"}},{"package":{"name":"yara","ecosystem":"Debian:14","purl":"pkg:deb/debian/yara?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.2-1","4.5.3-1","4.5.4-1","4.5.5-1","4.5.6-1","4.5.7-1","4.5.8-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88341.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}