{"id":"DEBIAN-CVE-2026-92705","details":"Aegisub is a cross-platform advanced subtitle editor. From 3.2.0 to 3.4.2, Aegisub automatically loads Automation scripts referenced by `Automation Scripts` metadata in `ASS` subtitle projects without asking whether the user trusts the scripts or their authors. An attacker can distribute a crafted `ASS` file together with a referenced malicious Automation script, and opening the `AS`  file executes arbitrary code with the privileges of the Aegisub process. From 3.4.0 to 3.4.2, inconsistent handling of embedded `NUL` characters between extension validation and filesystem operations additionally allows a crafted `ASS/Lua` polyglot to reference and execute itself as a single-file variant. The vulnerability is fixed in Aegisub 3.5.0.","modified":"2026-10-10T10:00:20.221140506Z","published":"2026-10-09T21:17:06.360Z","upstream":["CVE-2026-92705"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-92705"}],"affected":[{"package":{"name":"aegisub","ecosystem":"Debian:12","purl":"pkg:deb/debian/aegisub?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2+dfsg-7","3.2.2+dfsg-7.1","3.2.2+dfsg-7.2","3.2.2+dfsg-7.3","3.4.2+ds-1","3.4.2+ds-2","3.4.2+ds-3","3.4.2+ds-4","3.4.2+ds-5","3.4.2+ds-5~bpo13+1","3.5.0~beta-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92705.json"}},{"package":{"name":"aegisub","ecosystem":"Debian:13","purl":"pkg:deb/debian/aegisub?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2+dfsg-7.3","3.4.2+ds-1","3.4.2+ds-2","3.4.2+ds-3","3.4.2+ds-4","3.4.2+ds-5","3.4.2+ds-5~bpo13+1","3.5.0~beta-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92705.json"}},{"package":{"name":"aegisub","ecosystem":"Debian:14","purl":"pkg:deb/debian/aegisub?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2+dfsg-7.3","3.4.2+ds-1","3.4.2+ds-2","3.4.2+ds-3","3.4.2+ds-4","3.4.2+ds-5","3.4.2+ds-5~bpo13+1","3.5.0~beta-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92705.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:H/I:H/A:H"}]}