CVE-2026-55170 (GCVE-0-2026-55170)

Vulnerability from cvelistv5 – Published: 2026-07-09 21:04 – Updated: 2026-07-09 21:04
VLAI
Title
OpenFGA MySQL backend: case-insensitive collation on identifier columns causes incorrect authorization decisions
Summary
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.
Severity
2.1 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
Impacted products
Vendor Product Version
openfga openfga Affected: < 1.18.0
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          "versions": [
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        }
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            "subConfidentialityImpact": "LOW",
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          }
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
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          "tags": [
            "x_refsource_CONFIRM"
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          "url": "https://github.com/openfga/openfga/security/advisories/GHSA-cf98-j28v-49v6"
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          "tags": [
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        }
      ],
      "source": {
        "advisory": "GHSA-cf98-j28v-49v6",
        "discovery": "UNKNOWN"
      },
      "title": "OpenFGA MySQL backend: case-insensitive collation on identifier columns causes incorrect authorization decisions"
    }
  },
  "cveMetadata": {
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    "datePublished": "2026-07-09T21:04:28.713Z",
    "dateReserved": "2026-06-16T15:13:28.166Z",
    "dateUpdated": "2026-07-09T21:04:28.713Z",
    "state": "PUBLISHED"
  },
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  }
}



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