CVE-2026-79651
Keycloak-services: keycloak-services: unauthenticated dos via unbounded locale caching
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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.
Affected
We have no canonical product record for this CVE. The source names may not have matched any product.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
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CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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