Improper Handling of Case Sensitivity Affecting github.com/openfga/openfga/pkg/storage/mysql package, versions <1.18.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMOPENFGAOPENFGAPKGSTORAGEMYSQL-17394013
- published22 Jun 2026
- disclosed18 Jun 2026
- creditsahajamoth
Introduced: 18 Jun 2026
CVE-2026-55170 Â (opens in a new tab)How to fix?
Upgrade github.com/openfga/openfga/pkg/storage/mysql to version 1.18.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity in authorization checks. A user can obtain an authorization decision meant for a different identity by issuing a check for a user string that differs only in letter case from an authorized one, because MySQL's default collation treats the two strings as identical and returns the same response.