CVE-2026-55689

mediumCVSS 6.8covered by 1 sourcefirst seen 2026-07-09

OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, OpenFGA's OIDC authenticator skipped JWT audience validation when authn.method was set to oidc, authn.oidc.issuer was configured, and authn.oidc.audience was not set, allowing a token minted for an unrelated service by the same identity provider to authenticate to OpenFGA. This issue is fixed in 1.18.0.

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Exploitation outlook

Low exploitation risk0.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-55689: OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, OpenFGA's…nvd · 2026-07-09

External references

NVD record for CVE-2026-55689

CVE.org record

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