CVE-2026-43640HIGH 8.1EPSS p39.0%

CVE-2026-43640CVE-2026-43640

Description

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.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS0.50% probability of exploitation · percentile 39.0% · 2026-06-19T12:03:05Z
Published2026-05-11
Last modified2026-05-16

Underlying weaknesses· 1

CWE-303

References

  1. https://github.com/bitwarden/server/commit/eb251d9bf80724c87b187661783b9354d1784083
  2. https://github.com/bitwarden/server/pull/7403
  3. https://github.com/bitwarden/server/releases/tag/v2026.4.1
  4. https://sanjokkarki.com.np/blog/bitwarden-scim-key-bypass
  5. https://www.vulncheck.com/advisories/bitwarden-server-authentication-bypass-via-scim-api-key

1

TypeTargetConfidenceTier
WeaknessIncorrect Implementation of Authentication Algorithmcwe-3030%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-43639
CVE
CVE-2026-43911
CVE
CVE-2026-35430
CVE
CVE-2026-4924
CVE
CVE-2026-43912
CVE
CVE-2026-4828
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.