{"id":"CVE-2026-92705","aliases":["DEBIAN-CVE-2026-92705","EUVD-2026-95988","GHSA-67hq-5vgg-6f23","UBUNTU-CVE-2026-92705"],"status":"published","title":"Aegisub executes arbitrary code through automatically loaded Automation scripts","description":"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.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00128,"percentile":0.02525,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-158","CWE-829"],"published":"2026-10-09T20:37:58Z","modified":"2026-11-05T04:00:44Z","fixes":[{"ecosystem":"Debian:14","package":"aegisub","fixed_in":["3.5.1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"aegisub","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","3.5.1-1","3.5.1-1~exp1","3.5.1-1~exp2"]},{"source":"osv","ecosystem":"Debian:13","package":"aegisub","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","3.5.1-1","3.5.1-1~exp1","3.5.1-1~exp2"]},{"source":"osv","ecosystem":"Debian:14","package":"aegisub","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.1-1"}]}],"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","3.5.1-1~exp1","3.5.1-1~exp2"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"aegisub","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2+dfsg-2","3.2.2+dfsg-3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"aegisub","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2+dfsg-4build1","3.2.2+dfsg-5","3.2.2+dfsg-5ubuntu1","3.2.2+dfsg-5ubuntu2","3.2.2+dfsg-5ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"aegisub","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2+dfsg-7build2","3.2.2+dfsg-7.1","3.2.2+dfsg-7.1build1","3.2.2+dfsg-7.1build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"aegisub","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.2+ds-3","3.4.2+ds-4","3.4.2+ds-5"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"aegisub","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2+dfsg-7.2ubuntu2","3.4.2+ds-1build1","3.4.2+ds-1build2","3.4.2+ds-2","3.4.2+ds-3"]}],"products":[{"vendor":"typesettingtools","product":"aegisub"}],"references":[{"url":"https://github.com/TypesettingTools/Aegisub/security/advisories/GHSA-67hq-5vgg-6f23","tags":["x_refsource_CONFIRM","advisory","report"]},{"url":"https://github.com/TypesettingTools/Aegisub/commit/0a3073d59f10432eeebea65018b02ef4d0a87fff","tags":["x_refsource_MISC","fix","report"]},{"url":"https://github.com/TypesettingTools/Aegisub/commit/b5bf23979e7453f7b1cc8ffeb82b3cc2d2ca75e6","tags":["x_refsource_MISC","fix","report"]},{"url":"https://github.com/TypesettingTools/Aegisub/commit/e4099055711cce327840870c050ce46e58f4aee0","tags":["x_refsource_MISC","fix","report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92705.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92705","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-92705","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-92705","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92705","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-92705","title":"Aegisub executes arbitrary code through automatically loaded Automation scripts","description":"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.","status":"published","published":"2026-10-09T20:37:58.321Z","modified":"2026-10-14T02:14:56.936Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-158","CWE-829"],"updated_at":"2026-11-02T13:48:24.536396Z"}],"euvd":[{"id":"EUVD-2026-95988","description":"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.","status":"published","published":"2026-10-09T20:37:58Z","modified":"2026-10-14T02:14:56Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:18.393051Z"}],"nvd":[{"id":"CVE-2026-92705","description":"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.","status":"published","published":"2026-10-09T21:17:06.36Z","modified":"2026-10-16T20:04:29.76Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-158","CWE-829"],"updated_at":"2026-11-02T14:12:55.473789Z"}],"osv":[{"id":"CVE-2026-92705","title":"Aegisub executes arbitrary code through automatically loaded Automation scripts","description":"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.","status":"published","published":"2026-10-09T20:37:58.321Z","modified":"2026-10-28T11:00:54.96467263Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-158","CWE-829"],"updated_at":"2026-11-02T15:45:20.588039Z"},{"id":"DEBIAN-CVE-2026-92705","description":"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.","status":"published","published":"2026-10-09T21:17:06.36Z","modified":"2026-11-05T04:00:44.465992315Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-05T07:10:31.343344Z"},{"id":"UBUNTU-CVE-2026-92705","description":"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.","status":"published","published":"2026-10-09T21:17:00Z","modified":"2026-10-17T12:56:12.064692231Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:57:40.980117Z"}]}}