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OpenAdvisories
Medium · 6.8 CVE-2026-43911 EUVD-2026-29339

Vaultwarden: Refresh tokens not invalidated on security stamp rotation

Published May 11, 2026 · Updated May 12, 2026 · Assigned by GitHub_M

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

VendorProductAffectedFixed
dani-garcia vaultwarden < 1.35.5 —

Advisories 1

References