What’s Vulnerable › Vulnerabilities

CVE-2026-41414: Skim: Arbitrary code execution via pull_request_target fork checkout in pr.yml

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-24 · updated 2026-10-26
• Weakness: CWE-94

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.

Affected products

• skim-rs skim: before 4.6.1 — fixed in 4.6.1

How to fix

Upgrade to a fixed version: skim-rs skim 4.6.1. Check the vendor advisory for mitigations.

References

• https://github.com/skim-rs/skim/commit/bf63404ad51985b00ed304690ba9d477860a5a75
• https://github.com/skim-rs/skim/security/advisories/GHSA-9g93-rxr5-xhqw
• https://drive.google.com/file/d/1Gj7ziTK42YWXYoQgTbis_rMitHR59J6F/view
• https://github.com/skim-rs/skim/security/advisories/GHSA-9g93-rxr5-xhqw

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