CVE-2023-40579 OpenFGA Authorization Bypass

What is CVE-2023-40579?

CVE-2023-40579 is a medium-severity authentication bypass vulnerability in openfga, published on 25 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-284

Which versions are affected by CVE-2023-40579?

3 open source packages ship an affected version, including github.com/openfga/openfga. It affects 1 product.

Products include Openfga Openfga.

How do I fix CVE-2023-40579?

Upgrade github.com/openfga/openfga to 1.3.1 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-40579 being exploited?

There is no known exploitation of CVE-2023-40579 in the wild and no public exploit code.

Other vulnerabilities in openfga

• CVE-2024-31452 OpenFGA Authorization Bypass High 8.1
• CVE-2022-23542 OpenFGA Authorization Bypass High 7.7
• CVE-2024-42473 OpenFGA Authorization Bypass High 7.5
• CVE-2026-40293 OpenFGA Playground Preshared Key Exposure Medium 6.5
• CVE-2023-43645 Denial of service from circular relationship definitions in OpenFGA Medium 5.9

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-jcf2-mxr2-gmqp, GO-2023-2028.