CVE-2026-41414— Skim: Arbitrary code execution via pull_request_target fork checkout in pr.yml
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I. Basic Information for CVE-2026-41414
Vulnerability Information
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Vulnerability Title
Skim: Arbitrary code execution via pull_request_target fork checkout in pr.yml
Source: NVD (National Vulnerability Database)
Vulnerability Description
Skim is a fuzzy finder designed to through files, lines, and commands. The generate-files job in .github/workflows/pr.yml checks out attacker-controlled fork code and executes it via cargo run, with access to SKIM_RS_BOT_PRIVATE_KEY and GITHUB_TOKEN (contents:write). No gates prevent exploitation - any GitHub user can trigger this by opening a pull request from a fork. This vulnerability is fixed with commit bf63404ad51985b00ed304690ba9d477860a5a75.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
skim 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
skim是skim-rs开源的一个模糊搜索与文件快速定位工具。 skim存在代码注入漏洞，该漏洞源于pr.yml中generate-files任务检查攻击者控制的fork代码并执行，可能导致密钥泄露。以下版本受到影响：bf63404ad51985b00ed304690ba9d477860a5a75之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-41414
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