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CVE-2026-122136Powerlevel10k before 1.20.19 Symlink Following via Instant Prompt Temporary File
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.
4.1 MEDIUMEPSS 0.11%Not in KEVNVD: Deferred
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 4.1 | MEDIUM | 4.0VulnCheck (CNA) | CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| 4.4 | MEDIUM | 3.1VulnCheck (CNA) | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N |
Details
- CVE ID
- CVE-2026-122136
- Status
- Deferred
- Assigner (CNA)
- VulnCheck
- Published
- Nov 4, 2026
- Last modified
- 2026-11-04 21:18 UTC
- Weaknesses
- CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Affected Products
As published by the CNA in the CVE record.
romkatvpowerlevel10k1 version range
- before 1.20.19
References
- github.com https://github.com/romkatv/powerlevel10k
- github.com https://github.com/romkatv/powerlevel10k/blob/v1.20.0/internal/p10k.zsh#L6445-L6452
- github.com https://github.com/romkatv/powerlevel10k/commit/7ddd1b2715c3844275214347a3572ac1fdd6dc39
- github.com https://github.com/romkatv/powerlevel10k/issues/2972
- vulncheck.com https://www.vulncheck.com/advisories/powerlevel10k-before-1.20.19-symlink-following-via-instant-prompt-temporary-file