CVE-2026-122136 Powerlevel10k before 1.20.19 Symlink Following via Instant Prompt Temporary File
Medium 4.1
Published
Updated
Check this codebase for CVE-2026-122136 and fix it if it is affected.
What it is: CVE-2026-122136 is a medium-severity vulnerability in romkatv powerlevel10k, published on 4 Nov 2026.
Exploitation: There is no known exploitation of CVE-2026-122136 in the wild and no public exploit code.
Affected product: romkatv powerlevel10k. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-122136/ (Markdown: https://insights.sbomify.com/CVE-2026-122136/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-122136?
CVE-2026-122136 is a medium-severity vulnerability in romkatv powerlevel10k, published on 4 Nov 2026.
Official 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.
Weakness: CWE-59
Which versions are affected by CVE-2026-122136?
How do I fix CVE-2026-122136?
No fix has been published for CVE-2026-122136 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-122136 being exploited?
There is no known exploitation of CVE-2026-122136 in the wild and no public exploit code.
Sources
Also known as GHSA-v68w-4wfv-crrh.