CVE-2026-52860
highpriority · track · 31EPSS 0.002 · 13 %ileDEEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.8–8.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (22)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1786vim: Schwachstelle ermöglicht CodeausführungDeutsch2026-06-04csaf · cert_bundDE
Ein Angreifer kann eine Schwachstelle in vim ausnutzen, um beliebigen Programmcode auszuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://github.com/vim/vimPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-52860cnnvd
- https://github.com/vim/vim/commit/c8c63673bc4253212820626aeeb75999d9a539d2enisa_euvd
- https://github.com/vim/vim/releases/tag/v9.2.0597enisa_euvd
- https://github.com/vim/vim/security/advisories/GHSA-52mc-rq6p-rc7cenisa_euvd
- https://github.com/vim/vim/security/advisories/GHSA-65p9-mwwx-7468enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-52860nvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2487987nvd
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