Bug 2353868 (CVE-2025-2559)
| Summary: | CVE-2025-2559 org.keycloak/keycloak-services: JWT Token Cache Exhaustion Leading to Denial of Service (DoS) in Keycloak | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | aschwart, asoldano, bbaranow, bmaxwell, boliveir, brian.stansberry, cdewolf, darran.lofthouse, dkreling, dosoudil, drichtar, fjuma, istudens, ivassile, iweiss, jkoops, lgao, mosmerov, mposolda, msochure, msvehla, nwallace, pdrozd, peholase, pesilva, pjindal, pmackay, pskopek, rmartinc, rowaters, rstancel, security-response-team, smaestri, ssilvert, sthorger, tom.jenkinson, vmuzikar |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in Keycloak. When the configuration uses JWT tokens for authentication, the tokens are cached until expiration. If a client uses JWT tokens with an excessively long expiration time, for example, 24 or 48 hours, the cache can grow indefinitely, leading to an OutOfMemoryError. This issue could result in a denial of service condition, preventing legitimate users from accessing the system.
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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: | |
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Description
OSIDB Bzimport
2025-03-20 12:25:01 UTC
This issue has been addressed in the following products: Red Hat build of Keycloak 22 Via RHSA-2025:4336 https://access.redhat.com/errata/RHSA-2025:4336 This issue has been addressed in the following products: Red Hat build of Keycloak 26.0 Via RHSA-2025:4335 https://access.redhat.com/errata/RHSA-2025:4335 |