CVE-2026-55170 is a low-severity security vulnerability in github.com/openfga/openfga (go), affecting versions < 1.18.0. It is fixed in 1.18.0.
Description In OpenFGA, when MySQL is being used as the datastore, two distinct check requests can return the same response. Preconditions This applies if the following preconditions are met: You run OpenFGA with MySQL as the datastore Your authorization decisions rely on case-sensitive user strings. Fix Upgrade to OpenFGA 1.18.0 or greater. Acknowledgements OpenFGA would like to thank @sahajamoth for the detailed report.
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github.com/openfga/openfga (< 1.18.0)github.com/openfga/openfga → 1.18.0 (go)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter instead of chasing every advisory.
Kodem's runtime-powered SCA identifies whether CVE-2026-55170 is reachable in your applications. Explore open-source security for your team.
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Upgrade github.com/openfga/openfga to 1.18.0 or later to resolve this vulnerability.
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
CVE-2026-55170 is a low-severity security vulnerability in github.com/openfga/openfga (go), affecting versions < 1.18.0. It is fixed in 1.18.0.
github.com/openfga/openfga (go) versions < 1.18.0 is affected.
Yes. CVE-2026-55170 is fixed in 1.18.0. Upgrade to this version or later.
Whether CVE-2026-55170 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
Upgrade github.com/openfga/openfga to 1.18.0 or later.