EUVD-2026-25596CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
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5DescriptionNVD
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.
AnalysisAI
GitHub Actions workflow injection in Skim's CI pipeline allows remote code execution with elevated privileges when any GitHub user opens a pull request from a fork. The vulnerable generate-files job automatically checks out and executes attacker-controlled Rust code (via cargo run) with access to SKIM_RS_BOT_PRIVATE_KEY secret and GITHUB_TOKEN with contents:write permissions, enabling repository compromise. …
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RemediationAI
Within 24 hours: Identify all Skim instances used in your CI/CD pipelines and development workflows; immediately restrict external pull requests in affected repositories by disabling automatic CI triggers on forks (GitHub Settings > Actions > Fork pull request workflows > Require approval for all outside collaborators). Within 7 days: Apply commit bf63404 or later to your Skim deployment, review git history for suspicious commits or secret exfiltration, and rotate SKIM_RS_BOT_PRIVATE_KEY and any exposed GITHUB_TOKENs. …
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