CVEvulnerability

CVE-2026-92705

7.8 HIGH Published 2026-10-09 Modified 2026-10-16 Official page ↗
Status
Deferred
Published
2026-10-09
Last modified
2026-10-16
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-158, CWE-829

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.

Related

Weakness · CWE (2)

  • CWE-158 Improper Neutralization of Null Byte or NUL Character weakness
  • CWE-829 Inclusion of Functionality from Untrusted Control Sphere weakness

References