CVE-2026-42994

CRITICALNVD 9.89.8—

9.8

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.

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 19.1%
KEV: Not listed

Published

May 1, 2026

Last Modified

May 4, 2026

Advisory Details (1)

Auto-updated May 12, 2026

No patch confirmed yet.

generic

Bitwarden Statement on Checkmarx Supply Chain Incident - Notices - Bitwarden Community Forums

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

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 11:22 UTCepss_batch
2026-05-20 11:22 UTCepss_batch
2026-05-20 09:22 UTCEG score recompute
2026-05-20 09:22 UTCGHSA enrichment
2026-05-20 05:20 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-42994?

CVE-2026-42994 is a critical vulnerability published on May 1, 2026. 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.

When was CVE-2026-42994 disclosed?

CVE-2026-42994 was first published in the National Vulnerability Database on May 1, 2026, with the most recent update on May 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-42994 actively exploited?

CVE-2026-42994 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-42994?

CVE-2026-42994 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2026-42994?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42994, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-42994

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CVE-2026-42994

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Bitwarden Statement on Checkmarx Supply Chain Incident - Notices - Bitwarden Community Forums

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-42994?

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Last Modified

Advisory Details (1)

Frequently asked(5)

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