CVE-2026-55170 | THREATINT

Description

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.

PUBLISHED Reserved 2026-06-16 | Published 2026-07-09 | Updated 2026-07-10 | Assigner GitHub_M

LOW: 2.1CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-178: Improper Handling of Case Sensitivity

Product status

< 1.18.0

affected

References

github.com/...penfga/security/advisories/GHSA-cf98-j28v-49v6

github.com/...ommit/96d5517a2693ff5def451dee7d6b9d1baeb281f8

github.com/...ommit/a2e0dbefc3e01a95c785f81a3563bc6571b08b11

github.com/openfga/helm-charts/releases/tag/openfga-0.3.9

github.com/openfga/openfga/releases/tag/v1.18.0

cve.org (CVE-2026-55170)

nvd.nist.gov (CVE-2026-55170)

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