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TI-2023-21377 Aliases CVE-2023-40579GHSA-jcf2-mxr2-gmqp

OpenFGA Authorization Bypass

Priority LOW 30CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-284.

Summary

OpenFGA is an authorization/permission engine built for developers and inspired by Google Zanzibar. Some end users of OpenFGA v1.3.0 or earlier are vulnerable to authorization bypass when calling the ListObjects API. The vulnerability affects customers using `ListObjects` with specific models. The affected models contain expressions of type `rel1 from type1`. This issue has been patched in version 1.3.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00545 45th percentileScored 2026-11-07
Fix Fixed openfga (openfga): 1.3.1github.com/openfga/openfga (Go): 1.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
openfgaopenfgabefore 1.3.11.3.1Patch availableCNA
—github.com/openfga/openfga (Go)before 1.3.11.3.1Patch availableGHSA-jcf2-mxr2-gmqp
  • openfga Vendoropenfga Affected before 1.3.1 Fixed in 1.3.1 Patch available CNA
  • github.com/openfga/openfga (Go) Vendor— Affected before 1.3.1 Fixed in 1.3.1 Patch available GHSA-jcf2-mxr2-gmqp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*before 1.3.1Vulnerableopenfga
  • cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:* Versions before 1.3.1 Vulnerable ·openfga

Remediation

  • Fix · CNA openfga (openfga) Fixed in 1.3.1
  • Fix · GHSA-jcf2-mxr2-gmqp github.com/openfga/openfga (Go) Fixed in 1.3.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-40579
  2. 2026-10-03 Alias added: GHSA-jcf2-mxr2-gmqp

References

Advisory 2

Other 2

  • TI-2023-17995 OpenFGA denial of service die to circular relationship CVSS 3.1HIGH 7.5
  • TI-2024-28441 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
  • TI-2022-07597 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
  • TI-2024-20816 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
  • TI-2022-18717 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
  • TI-2022-18716 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
See all 25 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences