CVE-2026-42994 Supply chain in Bitwarden CLI

High 8.8 Published Updated

Attackers can execute arbitrary code via malicious packages distributed through the npm registry during a specific supply chain incident.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-42994?

CVE-2026-42994 is a high-severity vulnerability in Bitwarden CLI, published on 1 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Bitwarden CLI 2026.4.0 from 2026-04-22T21:57Z to 2026-04-22T23:30Z, when obtained from npm, had embedded malicious code. This is related to a Checkmarx supply chain incident.

Weakness: CWE-94, CWE-78

Which versions are affected by CVE-2026-42994?

It affects 1 product.

Products include Bitwarden Cli.

How do I fix CVE-2026-42994?

No fix has been published for CVE-2026-42994 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-42994 being exploited?

There is no known exploitation of CVE-2026-42994 in the wild and no public exploit code.

Sources

Also known as GHSA-999x-2wm3-jfx8.

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