CVE-2026-43911
Vaultwarden: Refresh tokens not invalidated on security stamp rotation
- State
- Published
- Severity
- 6.8 Medium
- Published
- May 11, 2026
- Updated
- May 12, 2026
- Reserved
- May 4, 2026
Description
Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, refresh tokens are not invalidated when the user's security_stamp is rotated by some security-sensitive operations (password change, KDF change, key rotation, email change, org admin password reset, emergency access takeover). This allows an attacker holding a previously obtained refresh token to maintain session access even after the user has taken action to secure their account. This vulnerability is fixed in 1.35.5.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.8 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-613 Insufficient Session Expiration
Affected Products
| Product | Versions |
|---|---|
vaultwardendani-garcia |
|
References
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