- Issued:
- 2026-09-03
- Updated:
- 2026-09-03
RHSA-2026:62515 - Security Advisory
Synopsis
Important: Red Hat build of Quarkus 3.27.5.SP1 release and security update
Type/Severity
Security Advisory: Important
Topic
An update is now available for Red Hat build of Quarkus.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability. For more information, see the CVE links in the References section.
Description
This release of Red Hat build of Quarkus 3.27.5.SP1 includes the following CVE fixes:
- quarkus-apache-httpclient: Apache HttpComponents Client: Denial of Service due to connection leak [quarkus-3.27] (CVE-2026-64607)
- quarkus-apache-httpclient: Apache HttpComponents Client: Server impersonation via improper TLS hostname verification [quarkus-3.27] (CVE-2026-71290)
- quarkus-qute: Quarkus: Server-Side Template Injection (SSTI) vulnerability in ReflectionValueResolver of the Quarkus Qute template engine [quarkus-3.27] (CVE-2026-12894)
- quarkus-oidc: Quarkus OIDC: Cross-tenant authentication bypass via shared token-introspection cache [quarkus-3.27] (CVE-2026-19625)
- quarkus-spring-web: quarkus-spring-web: Authorization bypass via URL query string manipulation [quarkus-3.27] (CVE-2026-19651)
- resteasy-core: RESTeasy SourceProvider remote unauthenticated file read [quarkus-3.27] (CVE-2026-17615)
- mongodb-driver-core: MongoDB Driver: Credential disclosure via cleartext logging during client initialization [quarkus-3.27] (CVE-2026-18710)
- smallrye-graphql: SmallRye GraphQL: Unauthenticated Denial of Service via large exponent float literals [quarkus-3.27] (CVE-2026-76763)
- proton-j: Apache Qpid Proton-J: Denial of Service via unbounded type nesting [quarkus-3.27] (CVE-2026-66274)
- proton-j: Apache Qpid Proton-J: Denial of Service due to excessive allocation [quarkus-3.27] (CVE-2026-66273)
- proton-j: Apache Qpid Proton-J: Denial of Service via unbounded symbol value caching [quarkus-3.27] (CVE-2026-66257)
- netty-codec-http: Netty: Information disclosure via CORS Vary header overwrite [quarkus-3.27] (CVE-2026-59903)
- netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration [quarkus-3.27] (CVE-2026-62243)
For more information, see the release notes page listed in the References section.
Solution
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:
Affected Products
- Red Hat build of Quarkus Text-Only Advisories x86_64
Fixes
(none)CVEs
References
- https://access.redhat.com/security/updates/classification/#important
- https://access.redhat.com/products/quarkus/
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=redhat.quarkus&downloadType=distributions&version=3.27.5.SP1
- https://docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.27
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.