nvm use --save and nvm install --save write through a symlinked .nvmrc, overwriting any file the user can write

Özet

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Node Version Manager (nvm) is a POSIX-compliant shell function for managing multiple node.js versions. In versions 0.40.0 through 0.40.8, nvm use --save and nvm install --save (or -w) write the resolved version to $PWD/.nvmrc with tee, which follows a symbolic link. A repository that commits .nvmrc as a symlink to a path outside itself (git recreates the link on clone) therefore makes --save truncate any file the user can write, such as a shell startup file or ~/.ssh/authorized_keys, and replace its contents with the version string, or create the target of a dangling link; the link itself is left unchanged, so git status stays clean. The attacker does not control the content written, so this is data loss, not code execution. Version 0.41.0 refuses, with a warning, to write when .nvmrc in the current directory is a symlink, dangling or not, rather than writing through it or replacing it.

Üreticinin çözüm notu (İngilizce)

Upgrade to nvm 0.41.0 or later.

Etkilenen sürümler1 yazılım

Kaynaklar4 kaynak

• CVE.org kaydı
• NVD kaydı
• github.com/…sh/nvm/security/advisories/GHSA-8qjx-8r8m-mpqh Üretici bülteni
• github.com/…ommit/3f8411e58d40b904e4ff6a96512391f56bd95bf7 Yama

Kayıt geçmişi

1. 5 Kas 2026 00:31Yayımlandı

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