CVE-2026-34982 PUBLISHED

Vim is an open source, command line text editor. Prior to version 9.2.0276, a modeline sandbox bypass in Vim allows arbitrary OS command execution when a user opens a crafted file. The complete, guitabtooltip and printheader options are missing the P_MLE flag, allowing a modeline to be executed. Additionally, the mapset() function lacks a check_secure() call, allowing it to be abused from sandboxed expressions. Commit 9.2.0276 fixes the issue.

• https://github.com/vim/vim/security/advisories/GHSA-8h6p-m6gr-mpw9
• https://github.com/vim/vim/commit/75661a66a1db1e1f3f1245c615
• https://github.com/vim/vim/releases/tag/v9.2.0276

• CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE