Bug 2487987 (CVE-2026-52860) - CVE-2026-52860 vim: Vim: Arbitrary code execution through Python omni-completion.
Summary: CVE-2026-52860 vim: Vim: Arbitrary code execution through Python omni-complet...
Keywords:
Status: NEW
Alias: CVE-2026-52860
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-11 19:02 UTC by OSIDB Bzimport
Modified: 2026-06-18 15:41 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-06-11 19:02:39 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.