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    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.

    Published:May 11, 2026
    Last Modified:May 18, 2026
    EPS:May 11, 2026
    EPSS Score:0.00032
    CVSS Score:6.8

    Affected Products

    Vendor
    Dani-garcia
    Product
    Vaultwarden

    Exploits

    https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6j4w-g4jh-xjfxhttps://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6j4w-g4jh-xjfx

    Common Weakness Enumeration

    CWE-613 Insufficient Session Expiration

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-47160 (CVSS 5.8) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's /icons/{domain}/i…
    CVE-2026-47164 (CVSS 7.7) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO login flow ch…
    CVE-2026-47159 (CVSS 6.9) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO discovery and…
    CVE-2026-47158 (CVSS 8.3) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO authorization…
    CVE-2026-43914 (CVSS 7.3) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.4, there is a security vulnerabili…
    CVE-2026-43913 (CVSS 8.1) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, Vaultwarden allows an unconfirm…
    CVE-2026-43912 (CVSS 8.7) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, Vaultwarden does not enforce th…
    CVE-2026-33420 (CVSS 5.3) — Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the get_org_colle…
    CVE-2026-31835 (CVSS 5.3) — Vaultwarden is a Bitwarden-compatible server written in Rust. In versions 1.35.4 and earlier, the WebAuthn aut…
    CVE-2026-27898 (CVSS 5.4) — Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prio…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High