CVE-2026-60104
Bitwarden Server before 2026.6.0 does not verify that the email in a POST /auth-requests/admin-request body belongs to the authenticated caller, allowing a low-privileged organization member to obtain another user's vault key and a victim-scoped access…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Bitwarden Server before 2026.6.0 does not verify that the email in a POST /auth-requests/admin-request body belongs to the authenticated caller, allowing a low-privileged organization member to obtain another user's vault key and a victim-scoped access token by creating a Trusted Device Encryption authentication request, bound to an attacker-controlled public key, that is readable from an unauthenticated endpoint once approved resulting in disclosure of the victim's vault key and account takeover.
- CVSS 4.0
- 9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.37% probability · 31th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-639
- Affected
- bitwarden/server
- Source
- disclosure@vulncheck.com
References
- https://github.com/bitwarden/server/commit/dcf4c486b2b5bedecc03a48b427243328cc74a9aPatch
- https://github.com/bitwarden/server/pull/7615Issue Tracking, Patch
- https://github.com/bitwarden/server/releases#release-v2026.6.0Release Notes
- https://sanjokkarki.com.np/blog/bitwarden-vault-key-heistExploit, Third Party Advisory
- https://www.vulncheck.com/advisories/bitwarden-server-authorization-bypass-via-admin-auth-requestThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.