CVE-2026-55170 — OpenFGA MySQL backend: case-insensitive collation on identifier columns causes incorrect authorization decisions
OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, when MySQL is being used as the datastore and authorization decisions rely on case-sensitive…
Published: 2026-07-09 · CVSS: 2.1 · CVSS 4.0
OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, when MySQL is being used as the datastore and authorization decisions rely on case-sensitive user strings, the tuple, changelog, and authorization_model identifier columns can compare case-distinct values such as user:Alice and user:alice as equivalent, causing two distinct check requests to return the same response. This issue is fixed in 1.18.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7