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CVE-2026-57456

Vim: Arbitrary Code Execution via Python Omni-Completion Docstrings

Published: Jun 25, 2026Updated: Jun 26, 2026 Sources: CVE List NVDCWE-94
7.8HIGH
NVD MITRE
EPSS Score
0.1%
Top 95.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Vim is an open source, command line text editor. Prior to 9.2.0699, Vim's Python omni-completion (runtime/autoload/python3complete.vim and the legacy pythoncomplete.vim) executes reconstructed function and class definitions from the current buffer with exec() as part of populating the completion dictionary. When reconstructing that source, each scope's docstring is inserted verbatim between triple quotes with no escaping, so a hostile buffer can break out of the triple-quoted literal and execute attacker-controlled Python during omni-completion. This vulnerability is fixed in 9.2.0699.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94

Affected Products

vim
oss-projectaka gvim, vi, vim/vim
vimOn-premDesktop App
Consumer Software / file-utility

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/vim/vim/commit/cce141c42740f122dd8486ae04e21c2a81016ba8
github.com
https://github.com/vim/vim/releases/tag/v9.2.0699
github.com
https://github.com/vim/vim/security/advisories/GHSA-ppj8-wqjf-6fp3
github.com

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