CVE-2026-122136

Medium

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.

SeverityMedium

CVSS4.4

Exploit probability—

ProductRomkatv Powerlevel10k

PublishedNov 4, 2026

First seenNov 4, 2026

Weakness typeCWE-59Improper link resolution

How to fix

Update

romkatv powerlevel10k1.20.19 or later

Patches

github.com/romkatv/powerlevel10k/commit/7ddd1b2715c3844275214347a3572ac1fdd6dc39

Affected products

Product	Affected versions	Fixed in
romkatv powerlevel10k	v < 1.20.19	1.20.19

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