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CVE-2026-122136— Powerlevel10k before 1.20.19 Symlink Following via Instant Prompt Temporary File

Quick assessment

Affected
romkatv powerlevel10k
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Powerlevel10k 在 1.20.19 之前版本中存在一个符号链接跟踪漏洞，位于 函数中。该漏洞允许本地攻击者利用可预测的临时路径，覆盖受害者可写的文件。攻击者可在 目录中预先创建指向 的符号链接（通过猜测受害者的 Shell 进程 ID），从而在 Shell 启动时截断并覆盖目标文件。

CVSS 4.4 · Medium

Possible ATT&CK Techniques 1 AI

T1565.002 · Transmitted Data Manipulation
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I. Basic Information for CVE-2026-122136

Vulnerability Information
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Vulnerability Title
Powerlevel10k before 1.20.19 Symlink Following via Instant Prompt Temporary File
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
romkatv powerlevel10k 0 ~ 1.20.19 -

II. Public POCs for CVE-2026-122136

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III. Intelligence Information for CVE-2026-122136

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Other References for CVE-2026-122136 (4)

IV. Related Vulnerabilities

Same product: powerlevel10k
Same vendor: romkatv
Same weakness: CWE-59