Bug 2487602 (CVE-2026-48096)

Summary: CVE-2026-48096 OpenFGA: OpenFGA: Incorrect authorization due to cache key collision in iterator caching
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: alcohan, amctagga, aoconnor, bniver, flucifre, gmeno, gparvin, groman, jbalunas, mbenjamin, mhackett, pahickey, rhaigner, rhel-process-autobot, sostapov, vereddy, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in OpenFGA, an authorization/permission engine. When iterator caching is enabled, distinct authorization check requests can generate identical cache keys. This can cause OpenFGA to reuse an outdated or incorrect cached result for subsequent requests. Such a flaw may lead to unauthorized information disclosure, data integrity issues, or denial of service with low impact.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-06-10 16:01:54 UTC
OpenFGA is an authorization/permission engine built for developers. Prior to version 1.16.0, when iterator caching is enabled, two distinct check requests can produce the same cache key, leading to OpenFGA reusing an earlier cached result for a subsequent request. This issue has been patched in version 1.16.0.