{"id":"CVE-2026-92705","title":"Aegisub is a cross-platform advanced subtitle editor","summary":"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 s…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-158","CWE-829"],"published":"2026-10-09","updated":"2026-10-09","sourceUpdated":"2026-10-09T21:17:06.360","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92705","references":[{"url":"https://github.com/TypesettingTools/Aegisub/commit/0a3073d59f10432eeebea65018b02ef4d0a87fff","label":"security-advisories@github.com"},{"url":"https://github.com/TypesettingTools/Aegisub/commit/b5bf23979e7453f7b1cc8ffeb82b3cc2d2ca75e6","label":"security-advisories@github.com"},{"url":"https://github.com/TypesettingTools/Aegisub/commit/e4099055711cce327840870c050ce46e58f4aee0","label":"security-advisories@github.com"},{"url":"https://github.com/TypesettingTools/Aegisub/security/advisories/GHSA-67hq-5vgg-6f23","label":"security-advisories@github.com"}],"tags":["nvd"],"ingestedAt":"2026-10-09T22:14:52.103Z","slug":"CVE-2026-92705","body":"## Overview\n\nAegisub 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}