CVE-2026-79651
Last modified
CVE-2026-79651 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in the theme localization endpoints of the keycloak-services component, which is the core service responsible for authentication flows and theme management in Keycloak. The issue occurs because the system accepts arbitrary locale tags from unauthenticated requests and stores them in a permanent in-memory cache without limits.
Description
A flaw was found in the theme localization endpoints of the keycloak-services component, which is the core service responsible for authentication flows and theme management in Keycloak. The issue occurs because the system accepts arbitrary locale tags from unauthenticated requests and stores them in a permanent in-memory cache without limits. An attacker can exploit this by sending a large number of unique locale tags, eventually causing the server to run out of memory and crash.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 | All versions |
| Red Hat | Red Hat build of Keycloak 26.6 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-79651?
How severe is CVE-2026-79651?
How do I fix CVE-2026-79651?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- 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-2026-79641Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell…7.5
- CVE-2026-79642Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell…5.6
- CVE-2026-79643Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell…7.3
- CVE-2026-79644Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell…7.4
- CVE-2026-79645Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell…8.2
- CVE-2026-7965Insufficient validation of untrusted input in DevTools in Go…3.1
- CVE-2026-79652A flaw was found in the JWT Bearer authorization grant imple…5.9
- CVE-2026-79653In Eclipse SW360 versions 19.0.0, 19.1.0, 19.2.0, 20.0.0, 20…6
- CVE-2026-79654A flaw was found in Katello where the Content View History A…4.3
- CVE-2026-79655A flaw was found in sos clean, a utility within the sos pack…7.8
- CVE-2026-79657NLTK versions before 3.10.3 contain a remote code execution …9.8
- CVE-2026-79658Ech0 before 5.0.1 does not impose any size or shape limit on…7.5
Are you affected by CVE-2026-79651?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST