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Vulnerability record · CVE-2026-47158 · published 15 July 2026

CVE-2026-47158: Cross-site request forgery vulnerability

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.

8.3 CVSS 3.1 High EPSS 0.25% · top 85.0% CWE-352 · Cross-site request forgery Deferred
8.3CVSS 3.1 base score
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
15 Jul 2026Last modified by NVD

Description

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

References

LinkTags
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

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Source: NIST National Vulnerability Database (record CVE-2026-47158), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.