MEDIUM SeverityCVSS 3.16.8CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CVE-2026-43911

Last updated May 11, 2026 · Published May 11, 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.

Affected products

1 listed

dani-garcia:vaultwarden

Mappings

CWE

CWE-613

CAPEC

None listed.

Research

Session management: secure cookies, rotation, and lifetimeSession management is the spine of authenticated web apps. Use HttpOnly, Secure, SameSite cookies, rotate on…

Guides

Secure session management: cookies, tokens, rotation, and logoutSecure session management means HttpOnly Secure cookies, rotation on privilege change, idle and absolute…

Training

Session ManagementTokens, cookies, and state - keeping sessions secure in stateless architectures.

CVE-2026-43911

Description

Affected products

Mappings

Related