{"id":"CVE-2026-94185","aliases":["EUVD-2026-83825","GHSA-8grh-q73j-ffrc"],"status":"published","title":"nvm alias resolution follows `..` and discloses files outside $NVM_DIR/alias","description":"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 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 \u003ctraversing-name\u003e` discloses every non-comment line of the target file. There is no integrity or availability impact, and no command execution on this path.","severity":{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00221,"percentile":0.1283,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200","CWE-22"],"published":"2026-09-21T02:27:00Z","modified":"2026-10-28T02:30:42Z","products":[{"vendor":"nvm-sh","product":"nvm"}],"references":[{"url":"https://github.com/nvm-sh/nvm/security/advisories/GHSA-8grh-q73j-ffrc","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94185.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94185","tags":["advisory"]},{"url":"https://github.com/nvm-sh/nvm","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-94185","title":"nvm alias resolution follows `..` and discloses files outside $NVM_DIR/alias","description":"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 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 \u003ctraversing-name\u003e` discloses every non-comment line of the target file. There is no integrity or availability impact, and no command execution on this path.","status":"published","published":"2026-09-21T02:27:00.752Z","modified":"2026-09-21T19:40:26.517Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22","CWE-200"],"updated_at":"2026-11-02T14:19:54.122945Z"}],"euvd":[{"id":"EUVD-2026-83825","description":"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 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 \u003ctraversing-name\u003e` discloses every non-comment line of the target file. There is no integrity or availability impact, and no command execution on this path.","status":"published","published":"2026-09-21T02:27:00Z","modified":"2026-09-21T19:40:26Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:28:04.224689Z"}],"nvd":[{"id":"CVE-2026-94185","description":"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 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 \u003ctraversing-name\u003e` discloses every non-comment line of the target file. There is no integrity or availability impact, and no command execution on this path.","status":"published","published":"2026-09-21T03:16:34.243Z","modified":"2026-09-22T19:56:19.073Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-22","CWE-200"],"updated_at":"2026-11-02T14:12:50.043898Z"}],"osv":[{"id":"CVE-2026-94185","title":"nvm alias resolution follows `..` and discloses files outside $NVM_DIR/alias","description":"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 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 \u003ctraversing-name\u003e` discloses every non-comment line of the target file. There is no integrity or availability impact, and no command execution on this path.","status":"published","published":"2026-09-21T02:27:00.752Z","modified":"2026-10-28T02:30:42.996040309Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-200","CWE-22"],"updated_at":"2026-11-02T15:45:20.931171Z"}]}}