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CVE-2026-43640

Bitwarden Server prior to v2026.4.1 does not require master-password re-authentication when retrieving or rotating an organization's SCIM API key, allowing an authenticated user with SCIM management privileges to obtain the key using only a valid session.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d6d4c40772ea284ab61c3cff347ae796c92e783497026ca25dc9e6bef6b6c8fb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"H…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"affected","packageURL":"pkg:github/bitwarden/server","product":"server","repo":"https://github.com/bitwarden/server","vendor":"bitwarden","versions":[{"lessThan":"2026.4.1","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"H…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-303","description":"Incorrect Implementation of Authentication Algorithm","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["patch"],"url":"https://github.com/bitwarden/server/commit/eb251d9bf80724c87b187661783b9354d1784083"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/references/3
{"tags":["issue-tracking"],"url":"https://github.com/bitwarden/server/pull/7403"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/references/2
{"tags":["release-notes"],"url":"https://github.com/bitwarden/server/releases/tag/v2026.4.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/references/1
{"tags":["technical-description","exploit"],"url":"https://sanjokkarki.com.np/blog/bitwarden-scim-key-bypass"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/bitwarden-server-authentication-bypass-via-scim-api-key"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc14a5ed133ff1688834118432cb46d2a18c9808b8939ba940193c755417e889 · sha256:367cb3e0cea5de09… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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