Threats Tagged 'cve-2026-47057'

A security update for IBM Java SE version 8 (java-1.8.0-ibm) addresses multiple vulnerabilities including arbitrary class loading and instantiation via a malicious IIOP server (CVE-2026-8400), information disclosure or denial of service via integer overflow in Little CMS (CVE-2026-41254), and several enhancements and fixes in OpenJDK components such as TLS certificate handling, image processing, Jar file handling, and method delegation. The update is rated as important by Red Hat Product Security and affects Red Hat Enterprise Linux 8 on multiple architectures.

The OpenJDK 21 packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java Software Development Kit. This release of the Red Hat build of OpenJDK 21 (21.0.12) for portable Linux serves as a replacement for the Red Hat build of OpenJDK 21 (21.0.11) and includes security and bug fixes as well as enhancements. For further information, refer to the release notes linked to in the References section. Security Fix(es): * JDK: Enhance TLS certificate handling (CVE-2026-46968) * JDK: Improve DTLS handshaking (CVE-2026-46917) * JDK: Enhance JPEG handling (CVE-2026-47010) * JDK: Enhance XBM image support (CVE-2026-47021) * JDK: Enhance Jar file processing (CVE-2026-47027) * JDK: Improve certification checking (CVE-2026-60147) * JDK: Enhance AWT ImagingLib (CVE-2026-47059) * JDK: Enhance Jar handling (CVE-2026-47063) * JDK: Update LCMS to 2.19 (CVE-2026-41254) Enhancement(s): * For the last couple of years, OpenJDK has used a single build shared among multiple RPMs and a tarball available on the customer portal. The single "portable" build has a release number ('p') and each RPM has its own release number ('r'). However, the RPM naming only showed the RPM release number, while the version output from the build showed the portable release number, making it unclear that they were different numbers. From this release onwards, a release field of the form 'p.r' is always used for RPMs and the version output shows 'p'. (OPENJDK-4890) Bug Fix(es): For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

CVE-2026-47057 is a high-severity vulnerability in Oracle Java SE's Scripting component affecting versions 8u491, 8u491-perf, and 11.0.31. It allows an unauthenticated attacker with network access via multiple protocols to cause a denial of service by hanging or crashing the Java SE environment. The vulnerability can be exploited through APIs, including those used by sandboxed Java Web Start applications or applets that run untrusted code. The CVSS 3.1 base score is 7.5, reflecting a significant availability impact without confidentiality or integrity loss. No official patch or remediation level is currently confirmed in the vendor advisory. Oracle recommends applying security patches promptly and staying on actively supported versions. The vendor advisory linked does not explicitly confirm patch availability for this specific vulnerability yet.