CVE-2026-121746: nvm · Link Following
Affects nvmSource CVE Database V5
Not known to be exploited · CVSS 6.7 Medium : upgrade to 0.41.0 when convenient.
Data as of 4 Nov 2026, 21:55 UTC
Thin evidence
One scorer or none| CNA (harborist) | CVSS 4.0 | 6.7 |
|---|---|---|
| CNA (harborist) | CVSS 3.1 | 5.5 |
- Patch
- Available – fixed in 0.41.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 4 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.
What to do
Upgrade nvm to 0.41.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| nvm-shnvm | Affected
| Fixed in
|
GitHubnvmpkg:github/nvmOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to nvm version 0.41.0 or later, which includes an official fix that prevents writing to .nvmrc if it is a symbolic link, thereby mitigating the vulnerability. No additional action is required if this version is used.
Description
Node Version Manager (nvm) versions 0.40.0 through 0.40.8 contain a vulnerability where the commands 'nvm use --save' and 'nvm install --save' write the resolved Node.js version string to a .nvmrc file in the current directory using 'tee', which follows symbolic links. If the .nvmrc file is a symlink to a file outside the repository, this can cause unintended truncation and overwriting of arbitrary writable files, such as shell startup files or SSH authorized_keys, resulting in data loss. Version 0.41.0 fixes this by refusing to write to .nvmrc if it is a symlink, issuing a warning instead.