{"id":"CVE-2026-94185","title":"nvm resolves a requested version or alias by treating it as a filename under $NVM_DIR/alias","summary":"nvm resolves a requested version or alias by treating it as a filename under $NVM_DIR/alias. Before 0.40.8, nvm_alias() concatenated the requested name onto that directory and read the result with no containment check, so a name containi…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cwe":["CWE-22","CWE-200"],"vendor":"nvm-sh","product":"nvm","affected":["nvm <= 0.40.7"],"published":"2026-09-21","updated":"2026-09-22","sourceUpdated":"2026-09-22T19:56:19.073","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-94185","references":[{"url":"https://github.com/nvm-sh/nvm/security/advisories/GHSA-8grh-q73j-ffrc","label":"7ffcee3d-2c14-4c3e-b844-86c6a321a158"}],"tags":["nvd","cve.org"],"epss":0.00294,"epssPercentile":0.22291,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T14:45:08.529950Z"},"ingestedAt":"2026-09-21T03:30:44.991Z","slug":"CVE-2026-94185","body":"## Overview\n\nnvm resolves a requested version or alias by treating it as a filename under $NVM_DIR/alias. Before 0.40.8, nvm_alias() concatenated the requested name onto that directory and read the result with no containment check, so a name containing a `..` component escaped the alias directory; under the default layout an alias such as `../../.npmrc` resolves to a file in the user's home directory. nvm_print_alias_file() then emits every non-comment, non-empty line of whatever was opened. A version string taken from an untrusted .nvmrc reaches this path, so a developer who runs `nvm use`, `nvm install`, or `nvm which` inside an attacker-supplied repository discloses the first non-comment line of an arbitrary file readable by that user, in the resulting \"is not yet installed\" error message. A user-supplied `nvm alias <traversing-name>` discloses every non-comment line of the target file. There is no integrity or availability impact, and no command execution on this path.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}