CVE-2026-10796: nvm · OS Command Injection
Affects nvmSource CVE Database V5
Not known to be exploited · CVSS 7.5 High.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 4.9% chance of exploitation in 30 days – higher than 92% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 4 Jun 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 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| nvm-shnvm | Affected
| Fixed in– |
GitHubnvm-sh/nvmpkg:github/nvm-sh/nvmOther threats | 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
A fix is available on the nvm-sh master branch but has not yet been released in a tagged version. Users should avoid configuring nvm to use non-default or non-TLS mirrors until an official patched release is available. When the patched version is released, users should upgrade promptly. Until then, users should ensure they only use the official Node.js mirror over TLS (https://nodejs.org) to avoid exposure.
Description
nvm (Node Version Manager) through 0.40.4 executes arbitrary commands from version strings supplied by the configured Node.js/io.js mirror. Commands such as `nvm install` read the available versions from the mirror's index.tab and use the selected version, without sanitization, to build download URLs and shell/awk commands. Two sinks are affected by the same untrusted input: nvm_download() built a curl/wget command string and ran it with `eval`, so a version field containing command substitution (for example $(id)) was executed by the local shell; and nvm_get_checksum() interpolated the version-derived download slug into an awk program, so a crafted version could execute arbitrary commands via awk's system(). An attacker who controls the configured mirror, supplies mirror content to a user or CI on a non-default mirror, or machine-in-the-middles a non-TLS mirror can ∴ run arbitrary commands with the privileges of the user running nvm. The default mirror (https://nodejs.org over TLS) is not affected. Fixed on master (pending the next tagged release) by passing every argument as a literal argv element instead of using eval, by passing the value to awk as data via -v instead of interpolating it into the program, and by rejecting any version outside the Node.js/io.js version grammar before it is used.
References
- github.com/nvm-sh/nvm/security/advisories/GHSA-3c52-35h2-gfmm (opens in a new tab)
- github.com/nvm-sh/nvm/commit/6d870d182cd5333647ffa16c0d7dbcd817ec27a8 (opens in a new tab)
- github.com/nvm-sh/nvm/commit/90bb88748ba6c29c2cec73b18ed7057413aef308 (opens in a new tab)
- github.com/nvm-sh/nvm/commit/70fb4ede6b9731d75d86451d48caa5faffbec21c (opens in a new tab)