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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://github.com/vim/vim/commit/75661a66a1db1e1f3f1245c615
security-advisories@github.com
https://github.com/vim/vim/releases/tag/v9.2.0276
security-advisories@github.com
https://github.com/vim/vim/security/advisories/GHSA-8h6p-m6gr-mpw9
security-advisories@github.com
http://www.openwall.com/lists/oss-security/2026/04/01/1
af854a3a-2127-422b-91ae-364da2661108