Bug 2500999 (CVE-2026-47158) - CVE-2026-47158 vaultwarden: Vaultwarden: Account takeover via SSO authorization flow vulnerability
Summary: CVE-2026-47158 vaultwarden: Vaultwarden: Account takeover via SSO authorizati...
Keywords:
Status: NEW
Alias: CVE-2026-47158
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-15 16:01 UTC by OSIDB Bzimport
Modified: 2026-07-15 17:09 UTC (History)
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Description OSIDB Bzimport 2026-07-15 16:01:48 UTC 
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.
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