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CVE-2025-48371 — Vulnerability in github.com/openfga/openfga — CVE...

MEDIUM

OpenFGA Authorization Bypass

Published May 23, 2025Updated September 10, 2026Source: osv

Summary

### Overview OpenFGA v1.8.0 to v1.8.12 ( openfga-0.2.16 <= Helm chart <= openfga-0.2.31, v1.8.0 <= docker <= v.1.8.12) are vulnerable to authorization bypass when certain Check and ListObject calls are executed. ### Am I Affected? If you are using OpenFGA v1.8.0 to v1.8.12, specifically under the following conditions, you are affected by this authorization bypass vulnerability: - Calling Check API or ListObjects with an [authorization model](https://openfga.dev/docs/concepts#what-is-an-authorization-model) that has a relationship directly assignable by both [type bound public access](https://openfga.dev/docs/concepts#what-is-type-bound-public-access) and [userset](https://openfga.dev/docs/modeling/building-blocks/usersets), and - There are check or list object queries with [contextual tuples](https://openfga.dev/docs/interacting/contextual-tuples) for the relationship that can be directly assignable by both [type bound public access](https://openfga.dev/docs/concepts#what-is-type-bound-public-access) and [userset](https://openfga.dev/docs/modeling/building-blocks/usersets), and - Those contextual tuples’s user field is an userset, and - Type bound public access tuples are not assigned to the relationship ### Fix Upgrade to v1.8.13. This upgrade is backwards compatible. ### Acknowledgments OpenFGA would like to thank @udyvish for discovering this vulnerability.

Advisory Timeline

  • First published May 23, 2025 (507 days ago).
  • Last revised September 10, 2026 — 474 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update github.com/openfga/openfga to 1.8.13 or later
go get github.com/openfga/openfga@v1.8.13

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: go (1).

PackageEcosystemAffectedFixed In
github.com/openfga/openfga
go
All versions1.8.13

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-285
    Improper AuthorizationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

Frequently Asked Questions

What is CVE-2025-48371?
OpenFGA Authorization Bypass This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 9.5/10).
How do I check if my project is affected by CVE-2025-48371?
CVE-2025-48371 affects github.com/openfga/openfga. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-48371 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.5

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-c72g-53hw-82q7
GO-2025-3707

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