CVE-2026-43911 (GCVE-0-2026-43911)

Vulnerability from cvelistv5 – Published: 2026-05-11 21:54 – Updated: 2026-05-12 16:44
VLAI
Title
Vaultwarden: Refresh tokens not invalidated on security stamp rotation
Summary
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.
Severity
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-12 16:43 UTC
CWE
  • CWE-613 - Insufficient Session Expiration
Assigner
References
Impacted products
Vendor Product Version CPE status
dani-garcia vaultwarden Affected: < 1.35.5
guessed Create a notification for this product.
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