CVE-2026-9799
Last modified
CVE-2026-9799 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. A flaw was found in org.keycloak.authorization. An authenticated user with a granted User-Managed Access (UMA) permission ticket for one resource can exploit this by using a specific permission request prefix to bypass per-resource access control. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
Description
A flaw was found in org.keycloak.authorization. An authenticated user with a granted User-Managed Access (UMA) permission ticket for one resource can exploit this by using a specific permission request prefix to bypass per-resource access control. This allows the user to gain unauthorized access to all resources of that type within the same resource server, even if they do not have a ticket for those specific resources. This vulnerability requires the resource server to be configured in PERMISSIVE policy enforcement mode and affects typed resources with ownerManagedAccess enabled, where no explicit policy protects the resource type. The primary consequence is unauthorized information disclosure or modification of resources.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Build Of Keycloak | >= 26.4, < 26.4.13 |
| Redhat | Build Of Keycloak | >= 26.6, < 26.6.4 |
References
- https://access.redhat.com/errata/RHSA-2026:30049Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:30050Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:30083Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:30084Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-9799Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2482471Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-9799?
How severe is CVE-2026-9799?
How do I fix CVE-2026-9799?
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-9792A flaw was found in Keycloak's Client Policies, specifically…6.5
- CVE-2026-9793A flaw was found in Keycloak. When a JSON Web Encryption (JW…7.5
- CVE-2026-9794A flaw was found in Keycloak. A remote, unauthenticated atta…5.3
- CVE-2026-9795A flaw was found in Keycloak's Fine-Grained Admin Permission…7.3
- CVE-2026-9796A flaw was found in Keycloak. An authenticated administrator…6.5
- CVE-2026-9798A flaw was found in Keycloak, an open-source identity and ac…4.3
- CVE-2026-9800A flaw was found in Keycloak Policy Enforcer. This vulnerabi…8.1
- CVE-2026-9801A flaw was found in Keycloak. A remote attacker with high pr…4.9
- CVE-2026-9802A flaw was found in Keycloak. When revokeRefreshToken=true i…6.8
- CVE-2026-9803A flaw was found in Keycloak's ClientRegistrationAuth compon…5.3
- CVE-2026-9804A flaw was found in KubeVirt's virt-exportserver component. …7.7
- CVE-2026-9806A stored cross-site scripting (XSS) vulnerability exists in …6.3
Are you affected by CVE-2026-9799?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
