CVE-2026-52860

Vim is an open source, command line text editor. Prior to version 9.2.0597, Vim's Python omni-completion executes reconstructed function and class definitions from the current buffer with exec() as part of populating the completion dictionary. Python evaluates function default values, parameter annotations, and class base expressions at definition time, so a hostile buffer can execute attacker-controlled Python expressions during omni-completion. The existing g:pythoncomplete_allow_import mitigation (GHSA-52mc-rq6p-rc7c) does not cover this path, because the attacker-controlled code is not a harvested import/from statement. This issue has been patched in version 9.2.0597.

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/c8c63673bc4253212820626aeeb75999d9a539d2	Patch
https://github.com/vim/vim/releases/tag/v9.2.0597	Product
https://github.com/vim/vim/security/advisories/GHSA-52mc-rq6p-rc7c	Mitigation Vendor Advisory
https://github.com/vim/vim/security/advisories/GHSA-65p9-mwwx-7468	Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-52860
https://bugzilla.redhat.com/show_bug.cgi?id=2487987
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52860.json

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-06-11 19:16

Updated : 2026-08-24 13:19

NVD link : CVE-2026-52860

Mitre link : CVE-2026-52860

CVE.ORG link : CVE-2026-52860

JSON object : View

Products Affected

vim

vim

CWE

CWE-94

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

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