Threats Tagged 'cve-2025-66560'

Red Hat has released a security update for its build of Quarkus 3.27.2 addressing four vulnerabilities: a timing attack in SCRAM authentication, a denial of service due to connection leaks in Hibernate Reactive, HTTP request smuggling via CRLF injection in Netty codec HTTP, and a worker thread exhaustion vulnerability in Quarkus REST. These issues have been rated with moderate severity by Red Hat. The update is intended to fix these vulnerabilities and improve overall stability and security of the product.

This release of Red Hat build of Quarkus 3.20.5 includes the following CVE fixes: * netty-codec-http: Netty (netty-codec-http): Request Smuggling via CRLF Injection [quarkus-3.20] (CVE-2025-67735) * common: Timing Attack Vulnerability in SCRAM Authentication [quarkus-3.20] (CVE-2025-59432) * quarkus-rest: Quarkus REST Worker Thread Exhaustion Vulnerability [quarkus-3.20] (CVE-2025-66560) For more information, see the release notes page listed in the References section.

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.

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