CVE-2023-35933

Public Exploit
OpenFGA denial of service die to circular relationship

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.23%
Vendor Advisory github.com Vendor Advisory openfga.dev Vendor Advisory openfga.dev
Affected: openfga openfga
Published at:
Updated at:

References

Link Tags
https://github.com/openfga/openfga/security/advisories/GHSA-hr9r-8phq-5x8j vendor advisory
https://github.com/openfga/openfga/commit/087ce392595f3c319ab3028b5089118ea4063452 patch
https://openfga.dev/api/service#/Relationship%20Queries/Check vendor advisory exploit
https://openfga.dev/api/service#/Relationship%20Queries/ListObjects vendor advisory exploit

Frequently Asked Questions

What is the severity of CVE-2023-35933?
CVE-2023-35933 has been scored as a medium severity vulnerability.
How to fix CVE-2023-35933?
To fix CVE-2023-35933, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-35933 being actively exploited in the wild?
It is possible that CVE-2023-35933 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-35933?
CVE-2023-35933 affects openfga openfga.
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