CVE-2026-59856highCWE-94

CVE-2026-59856: high-severity vulnerability in vim

Vim: Arbitrary Code Execution via PHP Omni-Completion

Published · Updated

Follow this CVE+ Monitor vim+ Monitor vim

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.4epss 0.2%
Vim is an open source, command line text editor. Prior to 9.2.0736, the PHP omni-completion script in runtime/autoload/phpcomplete.vim interpolates a class or trait name, taken from the contents of the edited buffer, into a search() pattern that is run via win_execute() without escaping. A name containing a single quote can terminate the search() string argument early, and because the bar is honored as an Ex command separator, the remainder of the name is run as Ex commands; via the :! command this allows arbitrary operating-system command execution when a victim opens a crafted PHP file and invokes omni-completion. This issue is fixed in version 9.2.0736.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
vim · vim
Related CVEs — vim

In the same product, most dangerous first.

CVE-2025-27423HIGHImproper Input Validation in VimEPSS 22.5%CVE-2026-28417MEDIUMVim has OS Command Injection in netrwEPSS 1.4%CVE-2026-44656MEDIUMVim: OS Command Injection via 'path' completionEPSS 0.9%CVE-2025-53906MEDIUMVim has path traversal issue with zip.vim and special crafted zip archivesEPSS 0.9%CVE-2026-33412MEDIUMVim affected by Command injection via newline in glob()EPSS 0.9%CVE-2026-42307MEDIUMVim: OS Command Injection in netrwEPSS 0.8%