Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
🔗 CVE IDs covered (2)
📋 Description
CVE-2026-61709 — github.com/openfga/openfga: OpenFGA: Unauthorized access due to ListUsers API returning deliberately excluded users. CVE-2026-86472 — fast-uri: fast-uri: Security bypass due to inconsistent host case normalization
🎯 Affected products4
- Red Hat Hardened Images
- grafana13.1-0:13.1.6-0.3.hum1@aarch64 as a component of Red Hat Hardened Images
- grafana13.1-0:13.1.6-0.3.hum1@src as a component of Red Hat Hardened Images
- grafana13.1-0:13.1.6-0.3.hum1@x86_64 as a component of Red Hat Hardened Images
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: No product-side mitigation is required while Zanzana remains disabled, which is the default. If Zanzana has been turned on, do not use ListUsers results as an access-control decision; use Check for each user and object until Grafana vendors OpenFGA 1.18.1 or later. Workaround: Applications utilizing fast-uri for host validation should implement case-insensitive comparisons by converting the parsed host to lowercase before performing any allowlist or denylist checks. This ensures that variations in host casing, including percent-encoded uppercase octets, do not lead to security bypasses.
🔗 References (6)
- selfhttps://access.redhat.com/errata/RHSA-2026:71040
- externalhttps://access.redhat.com/security/cve/CVE-2026-61709
- externalhttps://access.redhat.com/security/cve/CVE-2026-86472
- externalhttps://access.redhat.com/security/updates/classification/
- externalhttps://images.redhat.com/
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_71040.json