CVE-2026-34982

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.

CVSS 3.1

8.2CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-25)

CWE

CWE-78

Published

2026-04-06

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• vim:vim

References

• https://github.com/vim/vim/commit/75661a66a1db1e1f3f1245c615
• https://github.com/vim/vim/releases/tag/v9.2.0276
• https://github.com/vim/vim/security/advisories/GHSA-8h6p-m6gr-mpw9
• http://www.openwall.com/lists/oss-security/2026/04/01/1
• https://access.redhat.com/errata/RHSA-2026:11389

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