---
id: CVE-2026-52860
title: 'Vim is an open source, command line text editor'
summary: >-
  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 dicti…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
vendor: vim
product: vim
affected:
  - vim < 9.2.0597
patched:
  - vim 9.2.0597
published: '2026-06-11'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T12:18:23.923'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52860'
references:
  - url: 'https://github.com/vim/vim/commit/c8c63673bc4253212820626aeeb75999d9a539d2'
    label: security-advisories@github.com
  - url: 'https://github.com/vim/vim/releases/tag/v9.2.0597'
    label: security-advisories@github.com
  - url: 'https://github.com/vim/vim/security/advisories/GHSA-52mc-rq6p-rc7c'
    label: security-advisories@github.com
  - url: 'https://github.com/vim/vim/security/advisories/GHSA-65p9-mwwx-7468'
    label: security-advisories@github.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-52860'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2487987'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52860.json
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-52860'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52860'
  - url: 'https://access.redhat.com/errata/RHSA-2026:57614'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-06-12T03:55:44.783941Z'
scores:
  nvd: 7.8
  cna: 7.5
  vendor: 8
epss: 0.00224
epssPercentile: 0.13244
ingestedAt: '2026-09-17T12:16:56.796Z'
---

## Overview

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.

## Affected

- `vim < 9.2.0597`

## Remediation

Upgrade past the affected range:

- `vim 9.2.0597`

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6 · no fix planned: Red Hat Enterprise Linux 6 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52860.json)
- **RHSA-2026:57614** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-08-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:57614)