CVE-2026-46483 PUBLISHED

Vim is an open source, command line text editor. Prior to 9.2.0479, a command injection vulnerability exists in tar#Vimuntar() in runtime/autoload/tar.vim when decompressing .tgz archives on Unix-like systems. The function builds :!gunzip and :!gzip -d commands using shellescape(tartail) without the {special} flag, allowing a crafted archive filename to trigger Vim cmdline-special expansion and execute shell commands in the user's context. This vulnerability is fixed in 9.2.0479.

• https://github.com/vim/vim/security/advisories/GHSA-2fpv-9ff7-xg5w
• https://github.com/vim/vim/commit/3fb5e58fbc63d86a3e65f1a141b0d67af2aa38a1
• https://github.com/vim/vim/releases/tag/v9.2.0479

• CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE
• CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') CWE