CVE-2023-35933

HIGH
Published Jun 26, 20233y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jun 26, 2023 3y ago
Last Modified Jun 17, 2026 2w ago

Description

OPenFGA is an open source authorization/permission engine built for developers. OpenFGA versions v1.1.0 and prior are vulnerable to a DoS attack when Check and ListObjects calls are executed against authorization models that contain circular relationship definitions. Users are affected by this vulnerability if they are using OpenFGA v1.1.0 or earlier, and if you are executing `Check` or `ListObjects` calls against a vulnerable authorization model. Users are advised to upgrade to version 1.1.1. There are no known workarounds for this vulnerability. Users that do not have circular relationships in their models are not affected.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-835

Affected Products 1

VendorProductVersionRange
openfgaopenfga* <1.1.1

References 4

  • github.com https://github.com/openfga/openfga/commit/087ce392595f3c319ab3028b5089118ea4063452
    Patch
  • github.com https://github.com/openfga/openfga/security/advisories/GHSA-hr9r-8phq-5x8j
    Vendor Advisory
  • openfga.dev https://openfga.dev/api/service#/Relationship%20Queries/Check
    ExploitVendor Advisory
  • openfga.dev https://openfga.dev/api/service#/Relationship%20Queries/ListObjects
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/openfga/openfga/commit/087ce392595f3c319ab3028b5089118ea4063452
    Patch