Medium severity4.4NVD Advisory· Published Nov 4, 2026· Updated Nov 4, 2026
CVE-2026-122136
CVE-2026-122136
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-- in TMPDIR, guessing the victim's shell PID, so shell startup truncates and overwrites targeted files.
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Affected products
1- Range: <1.20.19
Patches
Vulnerability mechanics
References
4- github.com/romkatv/powerlevel10k/blob/v1.20.0/internal/p10k.zshnvd
- github.com/romkatv/powerlevel10k/commit/7ddd1b2715c3844275214347a3572ac1fdd6dc39nvd
- github.com/romkatv/powerlevel10k/issues/2972nvd
- www.vulncheck.com/advisories/powerlevel10k-before-1.20.19-symlink-following-via-instant-prompt-temporary-filenvd
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