CVE-2026-10796: nvm (Node Version Manager) through 0.40.4 executes arbitrary commands from version strings supplied by the con

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HIGH 7.5UPGRADE

CVE-2026-10796 is a high-severity flaw (CVSS 7.5) affecting node version manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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`,

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	5.0% (top 8%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-06-04
Last modified	2026-07-22

Publisher (CNA): openjs · Vendor: openjsf

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-04 18:16 UTCPublished CVE record published
2026-07-22 20:10 UTCUpdated Record last modified

openjsf node version manager UPGRADE

Affected: < 0.40.5

Fixed in: 0.40.5

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls node-version-manager

2. UPGRADE to 0.40.5

npm install node-version-manager@">=0.40.5"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-10796?

node version manager: upgrade to 0.40.5. Exact commands for each OS are on this page.

Is CVE-2026-10796 being exploited?

CVE-2026-10796 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-10796 affect?

CVE-2026-10796 affects node version manager. Severity is high (CVSS 7.5). 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 s

How urgent is CVE-2026-10796?

Priority 54/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference

Software pages

Node.js vulnerabilities · curl vulnerabilities

References

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