What is the CVSS score of EUVD-2026-19486?

EUVD-2026-19486 has a CVSS 3.1 base score of 5.0 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Is there a patch available for EUVD-2026-19486?

Yes, a patch is available for EUVD-2026-19486. Update the affected software to the latest version immediately.

Google EUVD-2026-19486

| CVE-2026-34972 MEDIUM

Incorrect Authorization (CWE-863)

2026-04-06 GitHub_M

GHSA-jwvj-g8pc-cx45

Google Authentication Bypass

5.0

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.0 MEDIUM

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

Red Hat

4.2 MEDIUM

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Patch released

Apr 07, 2026 - 20:30 nvd

Patch available

EUVD ID Assigned

Apr 06, 2026 - 21:00 euvd

EUVD-2026-19486

Analysis Generated

Apr 06, 2026 - 21:00 vuln.today

CVE Published

Apr 06, 2026 - 20:41 nvd

MEDIUM 5.0

DescriptionGitHub Advisory

OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. From 1.8.0 to 1.13.1, under specific conditions, BatchCheck calls with multiple checks sent for the same object, relation, and user combination can result in improper policy enforcement. This vulnerability is fixed in 1.14.0.

AnalysisAI

BatchCheck API calls in OpenFGA 1.8.0 through 1.13.1 can bypass authorization policies when multiple permission checks target the same object, relation, and user combination, allowing authenticated attackers with limited privileges to gain unauthorized access to protected resources. The vulnerability stems from improper handling of duplicate check parameters in batch operations and is fixed in version 1.14.0.

Technical ContextAI

OpenFGA is an authorization engine implementing a Zanzibar-inspired relationship-based access control (ReBAC) model. The vulnerability exists in the BatchCheck operation, which allows multiple authorization decisions to be evaluated in a single request. The root cause is classified under CWE-863 (Incorrect Authorization), indicating a flaw in the access control decision logic when processing batched requests with duplicate check parameters. When the same object-relation-user tuple appears multiple times within a single BatchCheck call, the authorization engine fails to properly enforce the defined policies, potentially returning incorrect permission decisions. This affects the core permission evaluation path in OpenFGA's authorization framework, which is critical infrastructure for applications delegating access control decisions to the platform.

RemediationAI

Vendor-released patch: OpenFGA 1.14.0 or later. Organizations using affected versions 1.8.0 through 1.13.1 must upgrade immediately to 1.14.0 or a later stable release to resolve the BatchCheck authorization bypass. No temporary workaround that avoids the vulnerability has been identified; immediate patching is the only remediation. Security advisory details are available at https://github.com/openfga/openfga/security/advisories/GHSA-jwvj-g8pc-cx45, which should be reviewed for comprehensive mitigation guidance and confirmation of fix applicability to your deployment.