CVE-2026-43911

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.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6j4w-g4jh-xjfx	Exploit Mitigation Vendor Advisory
https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6j4w-g4jh-xjfx	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:dani-garcia:vaultwarden:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-11 23:20

Updated : 2026-06-17 10:50

NVD link : CVE-2026-43911

Mitre link : CVE-2026-43911

CVE.ORG link : CVE-2026-43911

JSON object : View

Products Affected

dani-garcia

vaultwarden

CWE

CWE-613

Insufficient Session Expiration

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