CVE-2023-35933
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.13% probability · 65th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- openfga/openfga
- Source
- security-advisories@github.com
References
- https://github.com/openfga/openfga/commit/087ce392595f3c319ab3028b5089118ea4063452Patch
- https://github.com/openfga/openfga/security/advisories/GHSA-hr9r-8phq-5x8jVendor Advisory
- https://openfga.dev/api/service#/Relationship%20Queries/CheckExploit, Vendor Advisory
- https://openfga.dev/api/service#/Relationship%20Queries/ListObjectsExploit, Vendor Advisory
- https://github.com/openfga/openfga/commit/087ce392595f3c319ab3028b5089118ea4063452Patch
- https://github.com/openfga/openfga/security/advisories/GHSA-hr9r-8phq-5x8jVendor Advisory
- https://openfga.dev/api/service#/Relationship%20Queries/CheckExploit, Vendor Advisory
- https://openfga.dev/api/service#/Relationship%20Queries/ListObjectsExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.