CVE-2026-122136 json
Powerlevel10k before 1.20.19 Symlink Following via Instant Prompt Temporary File
published 2026-11-04 4 d ago modified 2026-11-04 4 d ago also EUVD-2026-117090
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 1%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 4.1 | 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 |
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N |
| CNA | 4.0 | 4.1 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N |
Affected products
- romkatv powerlevel10k
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
github.com
/romkatv/powerlevel10k/commit/7ddd1b2715c3844275214347a3572ac1fdd6dc39
patch
-
github.com
/romkatv/powerlevel10k/issues/2972
issue-tracking
-
github.com
/romkatv/powerlevel10k
product
-
github.com
/romkatv/powerlevel10k/blob/v1.20.0/internal/p10k.zsh#L6445-L6452
technical-description
-
vulncheck.com
/advisories/powerlevel10k-before-1.20.19-symlink-following-via-instant-prompt-temporary-file
third-party-advisory
Sources
- CVE List CVE-2026-122136
- NVD CVE-2026-122136
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.