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.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
romkatv powerlevel10k unaffected
Version Status Constraints
0 affected < 1.20.19

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/romkatv/powerlevel10k cve-icon
https://github.com/romkatv/powerlevel10k/blob/v1.20.0/internal/p10k.zsh#L6445-L6452 cve-icon
https://github.com/romkatv/powerlevel10k/commit/7ddd1b2715c3844275214347a3572ac1fdd6dc39 cve-icon
https://github.com/romkatv/powerlevel10k/issues/2972 cve-icon
https://www.vulncheck.com/advisories/powerlevel10k-before-1.20.19-symlink-following-via-instant-prompt-temporary-file cve-icon
History

Wed, 04 Nov 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title Powerlevel10k before 1.20.19 Symlink Following via Instant Prompt Temporary File
Weaknesses CWE-59
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 4.1, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-04T20:36:54.467Z

Reserved: 2026-11-04T18:13:12.570Z

Link: CVE-2026-122136

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses