CVE-2026-15921

The CVE-2026-15921 issue affects Node Version Manager (nvm) up to v0.40.5, where nvm ls-remote and similar commands parse the mirror index.tab and use each LTS codename as an alias filename without validation. A malicious mirror can return path-traversal codenames (e.g., ../../../.bashrc), causin...

CVE-2026-15921 nvm path traversal via a malicious mirror's LTS codename writes outside the alias directory

Node Version Manager nvm is a POSIX-compliant shell function for managing multiple node.js versions. In versions 0.32.1 through 0.40.5, nvm ls-remote and other commands that refresh remote LTS aliases, such as nvm install --lts parse the node.js mirror's index.tab and use each release's LTS...