CVE-2026-47158

Vaultwarden: CSRF in SSO Authorization Flow

CVSS 8.3 HIGHCWE-352

Vexday Risk Score

18Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.3EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

15 Jul 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO authorization flow did not bind the OAuth state parameter accepted by /connect/authorize to the initiating browser session, allowed attacker-controlled PKCE parameters, and left SsoAuth records intact after failed token exchange, allowing an unauthenticated attacker to induce IdP authentication and redeem tokens for a fully authenticated session. This issue is fixed in version 1.36.0.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H

Affected products

dani-garcia · vaultwarden

References

https://github.com/dani-garcia/vaultwarden/commit/d297e274a35dccd0f5d935e9d5934e0f7e9c0a87 https://github.com/dani-garcia/vaultwarden/pull/7163 https://github.com/dani-garcia/vaultwarden/releases/tag/1.36.0 https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-pfp2-jhgq-6hg5