CVE Watch7 de nov. de 2026

CVE-2026-63478

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/mod

CVSS

5.3

Média

EPSS

0.3%

p22

KEV

—

Exploit Today

0-100

Publicado: 3 de nov. de 2026 · Última mod.: 7 de nov. de 2026 · CWE-22

EPSS · 30d

0.3%EPSS · 30 dias0.3%

2026-11-042026-11-07

Descrição técnica

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.

Referências oficiais

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