CVE-2026-73073
HighCVSS 7.1Summary
Vim prior to 9.2.0845 has a vulnerability in StructMembers() in runtime/autoload/ccomplete.vim, which 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.
Risk Assessment
An attacker can exploit a malicious tags file to execute arbitrary commands on the user's machine while using Vim's completion feature, potentially leading to system compromise.
Recommendation
Update Vim to version 9.2.0845 or later, which includes a fix. Avoid opening tags files from untrusted sources.
Original NVD description (English source)
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.