ESB-2026.4627

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4627 Red Hat build of Quarkus 3.27.3.SP1 security update 6 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Red Hat build of Quarkus 3.27.3.SP1 Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2026-39852 CVE-2026-35554 CVE-2025-14813 CVE-2026-0636 CVE-2026-5588 Original Bulletin: https://access.redhat.com/errata/RHSA-2026:11721 Comment: CVSS (Max): 7.5* CVE-2026-5588 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N * Not all CVSS available when published EPSS (Max): 0.1% (19th)* CVE-2026-0636 2026-05-04 * Not all EPSS found when published - --------------------------BEGIN INCLUDED TEXT-------------------- RHSA-2026:11721 - Security Advisory Issued: 2026-05-05 Updated: 2026-05-05 Synopsis Red hat build of quarkus 3.27.3.sp1 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 3.27.3.SP1 includes the following CVE fixes: o quarkus-vertx- http: io.quarkus:quarkus-vertx- http: Authorization bypass via semicolons in HTTP requests [quarkus-3.27] (CVE-2026-39852) o bcprov-jdk18on: LDAP injection vulnerability in LDAPStoreHelper.java [quarkus-3.27] (CVE-2026-0636) o bcpkix-jdk18on: PKIX draft CompositeVerifier accepts empty signature sequence as valid [quarkus-3.27] (CVE-2026-5588) o bcprov-jdk18on: GOSTCTR implementation unable to process more than 255 blocks correctly [quarkus-3.27] (CVE-2025-14813) o kafka-clients: Apache Kafka Clients: Information disclosure and data corruption due to race condition in producer buffer management [quarkus-3.27] (CVE-2026-35554) 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: https://access.redhat.com/articles/11258 Affected Products o Red Hat build of Quarkus Text-Only Advisories x86_64 Fixes (none) CVEs o CVE-2025-14813 o CVE-2026-0636 o CVE-2026-5588 o CVE-2026-35554 o CVE-2026-39852 References o https://access.redhat.com/security/updates/classification/#important o https://access.redhat.com/products/quarkus/ o https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product =redhat.quarkus&downloadType=distributions&version=3.27.3.SP1 o https://docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.27 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================