isomorphic-git: Path traversal via a ".." tree-entry name writes files outside the working directory on clone/checkout

Özet

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isomorphic-git is a pure JavaScript implementation of Git for Node.js and browsers. Prior to 1.38.6, isomorphic-git's tree parser in src/models/GitTree.js accepts a standalone .. tree-entry name because it rejects only path separators. During clone or checkout from a malicious or man-in-the-middle-controlled non-GitHub remote, nested .. entries can escape the working-tree root and write files at attacker-selected parent paths on any host-backed fs provider. The arbitrary file write can overwrite startup or configuration files and lead to code execution. GitHub-hosted trees are not a direct source because GitHub rejects .. entries during repository integrity checks. This issue is fixed in version 1.38.6.

Etkilenen sürümler1 yazılım

Kaynaklar6 kaynak

• CVE.org kaydı
• NVD kaydı
• github.com/…ic-git/security/advisories/GHSA-cw2g-2vwq-88w6 Diğer
• github.com/isomorphic-git/isomorphic-git/pull/2370 Diğer
• github.com/…ommit/823843d1cd19182df79bc907c767f5bcecb39a0b Diğer
• github.com/…orphic-git/isomorphic-git/releases/tag/v1.38.6 Diğer

Kayıt geçmişi

1. 3 Kas 2026 22:39Yayımlandı

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