🛡️ CVE-2026-43911
🟡 CVSS 6.8 — Medium ✅ No Known Exploit NVD
6.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity Medium
CVSS Score 6.8
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2026-05-11
Updated 2026-06-02
Modified N/A
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown
vaultwarden 1.35.5

References

N/A

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