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CVE-2026-47158 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CNA: [email protected]CVSS-B:8.3 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/dani-garcia/vaultwarden/commit/d297e274a35dccd0f5d935e9d5934e0f7e9c0a87	[email protected]	Source CodeVendor
https://github.com/dani-garcia/vaultwarden/pull/7163	[email protected]	Issue TrackingVendor
https://github.com/dani-garcia/vaultwarden/releases/tag/1.36.0	[email protected]	Release NotesVendor
https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-pfp2-jhgq-6hg5	[email protected]	AdvisoryRemedyVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-352	Cross-Site Request Forgery (CSRF)	[email protected]

Affected Products

Product	Versions
Vaultwarden	< 1.35.8 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 1.36.0moderate effort Mitigation:low effort Enforce 2FA for all SSO users. This will block final session issuance but will not prevent identity leaks or account linking under default signup settings. Mitigation:low effort Restrict SSO to known domains via SSO_ALLOWED_ORGS / SIGNUPS_DOMAINS_WHITELIST to limit the targetable user pool. Mitigation:low effort Apply rate limits to /connect/authorize and /connect/token at a reverse proxy layer.

Product

Versions

Vaultwarden

< 1.35.8 (semver)

CPE

No CPEs found in CPE dictionary for this product.

Remediation

Upgrade: 1.36.0moderate effort
Mitigation:low effort
Enforce 2FA for all SSO users. This will block final session issuance but will not prevent identity leaks or account linking under default signup settings.
Mitigation:low effort
Restrict SSO to known domains via SSO_ALLOWED_ORGS / SIGNUPS_DOMAINS_WHITELIST to limit the targetable user pool.
Mitigation:low effort
Apply rate limits to /connect/authorize and /connect/token at a reverse proxy layer.

Change History

2 change records found show changes

Date	Action	Recorded By
Jul 15, 2026	CVE Modified	CISA-ADP
Jul 15, 2026	New CVE Received	[email protected]