Red Hat Security Advisory: Red Hat build of Quarkus 3.27.1.SP1 security update
🔗 CVE IDs covered (3)
📋 Description
CVE-2025-11966 — io.vertx/vertx-web: Eclipse Vert.x cross site scripting CVE-2025-12183 — lz4-java: lz4-java: Out-of-bounds memory operations lead to denial of service and information disclosure CVE-2025-66566 — lz4-java: lz4-java: Information Disclosure via Insufficient Output Buffer Clearing
🎯 Affected products1
- Red Hat build of Quarkus 3.27.1.SP1
✅ Remediation
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
🔗 References (6)
- selfhttps://access.redhat.com/errata/RHSA-2026:0134
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://access.redhat.com/products/quarkus/
- externalhttps://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=redhat.quarkus&downloadType=distributions&version=3.27.1.SP1
- externalhttps://docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.27
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0134.json