Quick answers
- Is CVE-2026-122136 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-122136 being exploited in the wild.
- How severe is CVE-2026-122136?
- Medium severity, with a CVSS score of 4.4, published 4 November 2026.
- Which products and versions are affected?
- Romkatv Powerlevel10k before 1.20.19.
- Is there a fix for CVE-2026-122136?
- Yes: fixed in 1.20.19. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-122136 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-122136?
- Check whether you run Romkatv Powerlevel10k at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 1.20.19
Technical details
The vulnerability is a classic symlink-following flaw in the _p9k_dump_instant_prompt function. It creates temporary files named p10k-instant-prompt-output-<user>-<pid> without checking for symlinks. An attacker can pre-create symlinks pointing to victim-writable files and guess or brute-force the PID, causing the shell to truncate and overwrite the target files during startup.
Affected products
- romkatv Powerlevel10k before 1.20.19
Timeline
- 2026-11-04: disclosed