Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-55170

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 16.1%
CVSS Severity
CVSS v3 Score 5.4
Products affected by CVE-2026-55170


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