CVE-2026-59856 — Vim: Arbitrary Code Execution via PHP Omni-Completion

Affected: vim

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.

USN-8541-1 — vim vulnerabilities

Affected: Ubuntu:Pro:14.04:LTS: vim, Ubuntu:Pro:16.04:LTS: vim, Ubuntu:Pro:18.04:LTS: vim, Ubuntu:Pro:20.04:LTS: vim, Ubuntu:22.04:LTS: vim, Ubuntu:24.04:LTS: vim, Ubuntu:26.04:LTS: vim

Hirohito Higashi discovered that Vim incorrectly escaped class or trait names when performing PHP omni-completion. An attacker could possibly use this issue to trick a user into opening a specially crafted PHP file and executing arbitrary commands. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-59856)

Hirohito Higashi discovered that Vim incorrectly handled sound-folding of certain words when using a spell file. An attacker could possibly use this issue to cause Vim to crash, resulting in a denial of service. (CVE-2026-59857)

It was discovered that Vim incorrectly escaped certain tags file fields when performing C omni-completion. An attacker could possibly use this issue to trick a user into opening a specially crafted file and executing arbitrary commands. (CVE-2026-59858)

Most recent entries from all

CVE-2026-59856 — Vim: Arbitrary Code Execution via PHP Omni-Completion

USN-8541-1 — vim vulnerabilities