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.
- Affected products
- Vaultwarden
- Dani-garcia Vaultwarden
- < 1.35.5
- Fix
- Available
- CVSS 3.1
- 8.1 HIGH
- EPSS
- 0.2% (12th percentile)
- Weakness
- CWE-613
- NVD status
- Analyzed
- Published
- 2026-05-11
CVE-2026-43911 at NVD
No indexed exploits for CVE-2026-43911 yet
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No exploit for CVE-2026-43911 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.