CVE-2026-73073Vim: Arbitrary Ex Command Execution in C Omni-Completion

Description

Vim is an open source, command line text editor. Prior to 9.2.0845, StructMembers() in runtime/autoload/ccomplete.vim constructs and executes a vimgrep command using an insufficiently escaped typeref: or typename: value from a tags file, allowing an unterminated collection followed by a command separator to execute arbitrary Ex and operating-system commands when a user invokes C omni-completion with CTRL-X CTRL-O on a member access whose type is resolved from that tags file. This issue is fixed in version 9.2.0845.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/vim/vim/security/advisories/GHSA-cx73-phcg-3j5g PatchVendor Advisory
• https://github.com/vim/vim/commit/2f628d8104958fa7421664f792ca6d4f7a39a10f Patch
• https://github.com/vim/vim/releases/tag/v9.2.0845 Product