CVE-2026-46483

LOW3.6

Vim: Command injection in tar#Vimuntar via missing shellescape {special} flag

Published May 15, 2026

Modified 3 weeks ago

Details

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.

References

WEB

https://github.com/vim/vim/commit/3fb5e58fbc63d86a3e65f1a141b0d67af2aa38a1

WEB

https://github.com/vim/vim/releases/tag/v9.2.0479

WEB

https://github.com/vim/vim/security/advisories/GHSA-2fpv-9ff7-xg5w

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-46483

CVSS Analysis

CVSS v3.1

3.6