Low 2.1Published Jul 9, 2026

CVE-2026-55170OpenFGA MySQL backend: case-insensitive collation on identifier columns causes incorrect authorization decisions

Updated under an hour ago (Oct 26, 2026, 5:50 PM ET)

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It affects openfga and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for openfga

Exploited in the last 30 days

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.

CVSS: 2.1 LOW (v4.0, CNA)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
Weakness (CWE): CWE-178
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jul 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

openfga openfga openfga:openfga (from the name)	before 1.18.0	CNA record
openfga helm_charts openfga:helm_charts	before 0.3.9	NVD
openfga openfga openfga:openfga	before 1.18.0	NVD

References

References

https://github.com/openfga/openfga/security/advisories/GHSA-cf98-j28v-49v6	x-refsource-confirm, vendor-advisory
https://github.com/openfga/helm-charts/commit/96d5517a2693ff5def451dee7d6b9d1baeb281f8	x-refsource-misc, patch
https://github.com/openfga/openfga/commit/a2e0dbefc3e01a95c785f81a3563bc6571b08b11	x-refsource-misc, patch
https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9	x-refsource-misc, product, release-notes
https://github.com/openfga/openfga/releases/tag/v1.18.0	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.