[ CVE-2026-122136 · Published 4 Nov 2026 ]
Vulnerability in romkatv powerlevel10k
CVSS 4.4
No fix listed yet
[ Description ]Official description
Powerlevel10k before 1.20.19 contains a symlink following vulnerability in _p9k_dump_instant_prompt that allows local attackers to overwrite victim-writable files via a predictable temporary path. Attackers can pre-plant symlinks at p10k-instant-prompt-output-<user>-<pid> in TMPDIR, guessing the victim's shell PID, so shell startup truncates and overwrites targeted files.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/romkatv/powerlevel10k
- github.com/romkatv/powerlevel10k/blob/v1.20.0/internal/p10k.zsh
- github.com/romkatv/powerlevel10k/commit/7ddd1b2715c3844275214347a3572ac1fdd6dc39
- github.com/romkatv/powerlevel10k/issues/2972
- www.vulncheck.com/advisories/powerlevel10k-before-1.20.19-symlink-following-via-instant…