How severe is CVE-2026-42994?

CVE-2026-42994 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-42994 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42994?

CVE-2026-42994 affects Bitwarden Cli. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42994?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-42994 have an EU (EUVD) identifier?

Yes. CVE-2026-42994 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26474.

When was CVE-2026-42994 published?

CVE-2026-42994 was published on 2026-05-01 and last updated on 2026-06-17.

CVE-2026-42994

CVE-2026-42994 is a critical-severity vulnerability in Bitwarden Cli with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 8.8
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26474
Weakness: CWE-94
Affected product: Bitwarden Cli
Published: 2026-05-01
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-42994?: 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.
How severe is CVE-2026-42994?: CVE-2026-42994 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-42994 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42994?: CVE-2026-42994 affects Bitwarden Cli. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42994?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-42994 have an EU (EUVD) identifier?: Yes. CVE-2026-42994 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26474.
When was CVE-2026-42994 published?: CVE-2026-42994 was published on 2026-05-01 and last updated on 2026-06-17.

References

https://community.bitwarden.com/t/bitwarden-statement-on-checkmarx-supply-chain-incident/96127

Affected products (1)

cpe:2.3:a:bitwarden:cli:2026.4.0:*:*:*:*:*:*:*

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