CVE-2026-57456

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/vim/vim/commit/cce141c42740f122dd8486ae04e21c2a81016ba8	Patch
https://github.com/vim/vim/releases/tag/v9.2.0699	Product
https://github.com/vim/vim/security/advisories/GHSA-ppj8-wqjf-6fp3	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-25 16:16

Updated : 2026-06-26 05:16

NVD link : CVE-2026-57456

Mitre link : CVE-2026-57456

CVE.ORG link : CVE-2026-57456

JSON object : View

Products Affected

vim

vim

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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