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.

• CWE-770

• https://github.com/quarkusio/quarkus/security/advisories/GHSA-5rfx-cp42-p624Vendor Advisory

Published

Jan 7, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• 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.

• CVE-2025-66555AirKeyboard iOS App 1.0.5 contains a missing authentication …8.8
• CVE-2025-66556Nextcloud talk is a video & audio conferencing app for Nextc…4.3
• CVE-2025-66557Nextcloud Deck is a kanban style organization tool aimed at …4.3
• CVE-2025-66558Nextcloud Twofactor WebAuthn is the WebAuthn Two-Factor Prov…4.3
• CVE-2025-66559Taiko Alethia is an Ethereum-equivalent, permissionless, bas…8
• CVE-2025-6656PDF-XChange Editor PRC File Parsing Out-Of-Bounds Read Infor…3.3
• CVE-2025-66561SysReptor is a fully customizable pentest reporting platform…5.4
• CVE-2025-66562TUUI is a desktop MCP client designed as a tool unitary util…9.6
• CVE-2025-66563Monkeytype is a minimalistic and customizable typing test. I…6.1
• CVE-2025-66564Sigstore Timestamp Authority is a service for issuing RFC 31…7.5
• CVE-2025-66565Fiber Utils is a collection of common functions created for …9.8
• CVE-2025-66566yawkat LZ4 Java provides LZ4 compression for Java. Insuffici…8.2