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Withdrawn: CLEANSTART-2026-BA48144 — Security fixes in keycloak 26.5.7-r5

Withdrawn by the publisher.

Affected: CleanStart: keycloak

Package keycloak version 26.5.7-r5 fixes 11 vulnerabilities: CVE-2026-54291, CVE-2026-54512, CVE-2026-54513, CVE-2026-54514, CVE-2026-54515...

EUVD-2026-265094

fkie_cve-2025-66560

Quarkus is a Cloud Native, (Linux) Container First framework for writing Java applications. Prior to versions 3.31.0, 3.27.2, and 3.20.5, a vulnerability exists in the HTTP layer of Quarkus REST related to response handling. When a response is being written, the framework waits for previously written response chunks to be fully transmitted before proceeding. If the client connection is dropped during this waiting period, the associated worker thread is never released and becomes permanently blocked. Under sustained or repeated occurrences, this can exhaust the available worker threads, leading to degraded performance, or complete unavailability of the application. This issue has been patched in versions 3.31.0, 3.27.2, and 3.20.5. A workaround involves implementing a health check that monitors the status and saturation of the worker thread pool to detect abnormal thread retention early.

GHSA-5rfx-cp42-p624 — Quarkus REST has potential worker thread starvation when HTTP connection is closed while waiting to write

Affected: Maven: io.quarkus:quarkus-rest

A vulnerability exists in the HTTP layer of Quarkus REST related to response handling. When a response is being written, the framework waits for previously written response chunks to be fully transmitted before proceeding. If the client connection is dropped during this waiting period, the associated worker thread is never released and becomes permanently blocked. Under sustained or repeated occurrences, this can exhaust the available worker threads, leading to degraded performance, or complete unavailability of the application.

## Workarounds

For versions without the fix applied, it is recommended to implement a health check that monitors the status and saturation of the worker thread pool. This helps detect abnormal thread retention early and allows operators to take corrective action before the application’s responsiveness is impacted.

## Credits

CVE reported by Shaswata Jash, Nokia

jvndb-2026-026852

Multiple vulnerabilities exist in Hitachi Ops Center Common Services. CVE-2025-10939, CVE-2025-11537, CVE-2025-11538, CVE-2025-12110, CVE-2025-13467, CVE-2025-13881, CVE-2025-14082, CVE-2025-14083, CVE-2025-14777, CVE-2025-66560, CVE-2026-0707, CVE-2026-0871, CVE-2026-0976, CVE-2026-1035, CVE-2026-1190, CVE-2026-2092, CVE-2026-2575, CVE-2026-2673, CVE-2026-3009, CVE-2026-3121, CVE-2026-3429, CVE-2026-3872, CVE-2026-3911, CVE-2026-4282, CVE-2026-4325, CVE-2026-4634, CVE-2026-22745, CVE-2026-22748, CVE-2026-25854, CVE-2026-40972, CVE-2026-40975

RHSA-2026:1899 — Red Hat Security Advisory: Red Hat build of Quarkus 3.20.5 release and security update

ongres-scram: Timing Attack Vulnerability in SCRAM Authentication io.quarkus/quarkus-rest: Quarkus REST Worker Thread Exhaustion Vulnerability netty-codec-http: Netty (netty-codec-http): Request Smuggling via CRLF Injection

WID-SEC-W-2026-0325 — Red Hat Build of Quarkus: Mehrere Schwachstellen

Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen, vertrauliche Informationen offenzulegen oder Daten zu manipulieren.