# RHSA-2026:88347: Security update for 27 packages RHSA-2026:88347, released October 29, 2026, fixes 39 CVEs across 27 products. None of them is reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/fix/linux/rhsa-2026-88347 - Platform: Linux - Released: Oct 29, 2026 - Priority: High (Closes CVE-2026-91415, high severity) - CVEs: 39, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://access.redhat.com/errata/RHSA-2026:88347 ## Applies to | Product | Release | Fixed in | |---|---|---| | [java](https://patchblox.com/security/data/product/linux/java.md) | RHEL 10 | 25-openjdk-1:25.0.5.0.8-1.0.el10 | | [java-25-openjdk](https://patchblox.com/security/data/product/linux/java-25-openjdk.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-crypto-adapter](https://patchblox.com/security/data/product/linux/java-25-openjdk-crypto-adapter.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-crypto-adapter-fastdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-crypto-adapter-fastdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-crypto-adapter-slowdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-crypto-adapter-slowdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-demo](https://patchblox.com/security/data/product/linux/java-25-openjdk-demo.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-demo-fastdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-demo-fastdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-demo-slowdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-demo-slowdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-devel](https://patchblox.com/security/data/product/linux/java-25-openjdk-devel.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-devel-fastdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-devel-fastdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-devel-slowdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-devel-slowdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-fastdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-fastdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-headless](https://patchblox.com/security/data/product/linux/java-25-openjdk-headless.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-headless-fastdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-headless-fastdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-headless-slowdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-headless-slowdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-javadoc](https://patchblox.com/security/data/product/linux/java-25-openjdk-javadoc.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-javadoc-zip](https://patchblox.com/security/data/product/linux/java-25-openjdk-javadoc-zip.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-jmods](https://patchblox.com/security/data/product/linux/java-25-openjdk-jmods.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-jmods-fastdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-jmods-fastdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-jmods-slowdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-jmods-slowdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-slowdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-slowdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-src](https://patchblox.com/security/data/product/linux/java-25-openjdk-src.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-src-fastdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-src-fastdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-src-slowdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-src-slowdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-static-libs](https://patchblox.com/security/data/product/linux/java-25-openjdk-static-libs.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-static-libs-fastdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-static-libs-fastdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | | [java-25-openjdk-static-libs-slowdebug](https://patchblox.com/security/data/product/linux/java-25-openjdk-static-libs-slowdebug.md) | RHEL 9 | 1:25.0.5.0.8-1.0.el9 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-91415](https://patchblox.com/security/data/cve/CVE-2026-91415.md) | High | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 7.0 | 0.0024 | | | [CVE-2026-91373](https://patchblox.com/security/data/cve/CVE-2026-91373.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0044 | | | [CVE-2026-91394](https://patchblox.com/security/data/cve/CVE-2026-91394.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0042 | | | [CVE-2026-91418](https://patchblox.com/security/data/cve/CVE-2026-91418.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0040 | | | [CVE-2026-83400](https://patchblox.com/security/data/cve/CVE-2026-83400.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0040 | | | [CVE-2026-83387](https://patchblox.com/security/data/cve/CVE-2026-83387.md) | Routine | Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JDBC). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients runn | 6.8 | 0.0033 | | | [CVE-2026-83395](https://patchblox.com/security/data/cve/CVE-2026-83395.md) | Routine | java-25-openjdk-crypto-adapter-slowdebug: The OpenJDK 25 packages provide the OpenJDK 25 Java Runtime Environment and the OpenJDK 25 Java Software Development Kit | 6.8 | 0.0033 | | | [CVE-2026-87290](https://patchblox.com/security/data/cve/CVE-2026-87290.md) | Routine | Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAXP). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running s | 6.8 | 0.0033 | | | [CVE-2026-83380](https://patchblox.com/security/data/cve/CVE-2026-83380.md) | Routine | Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAAS). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web St | 6.8 | 0.0033 | | | [CVE-2026-87255](https://patchblox.com/security/data/cve/CVE-2026-87255.md) | Routine | java-25-openjdk: The OpenJDK 25 packages provide the OpenJDK 25 Java Runtime Environment and the OpenJDK 25 Java Software Development Kit | 6.8 | 0.0031 | | | [CVE-2026-87291](https://patchblox.com/security/data/cve/CVE-2026-87291.md) | Routine | java-21-openjdk: The OpenJDK 21 packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java Software Development Kit | 6.8 | 0.0031 | | | [CVE-2026-91410](https://patchblox.com/security/data/cve/CVE-2026-91410.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0031 | | | [CVE-2026-91332](https://patchblox.com/security/data/cve/CVE-2026-91332.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0029 | | | [CVE-2026-91451](https://patchblox.com/security/data/cve/CVE-2026-91451.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0029 | | | [CVE-2026-91452](https://patchblox.com/security/data/cve/CVE-2026-91452.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0029 | | | [CVE-2026-91453](https://patchblox.com/security/data/cve/CVE-2026-91453.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0029 | | | [CVE-2026-83374](https://patchblox.com/security/data/cve/CVE-2026-83374.md) | Routine | Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typic | 6.8 | 0.0029 | | | [CVE-2026-91464](https://patchblox.com/security/data/cve/CVE-2026-91464.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0029 | | | [CVE-2026-91462](https://patchblox.com/security/data/cve/CVE-2026-91462.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0027 | | | [CVE-2026-101516](https://patchblox.com/security/data/cve/CVE-2026-101516.md) | Routine | openjdk-21: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java... | 6.8 | 0.0027 | | | [CVE-2026-91333](https://patchblox.com/security/data/cve/CVE-2026-91333.md) | Routine | java-21-openjdk: The OpenJDK 21 packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java Software Development Kit | 6.8 | 0.0027 | | | [CVE-2026-87294](https://patchblox.com/security/data/cve/CVE-2026-87294.md) | Routine | Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data as well as unauthorized read access to a subset of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e. | 6.8 | 0.0026 | | | [CVE-2026-91400](https://patchblox.com/security/data/cve/CVE-2026-91400.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0026 | | | [CVE-2026-83376](https://patchblox.com/security/data/cve/CVE-2026-83376.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0025 | | | [CVE-2026-87367](https://patchblox.com/security/data/cve/CVE-2026-87367.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0025 | | | [CVE-2026-87292](https://patchblox.com/security/data/cve/CVE-2026-87292.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0024 | | | [CVE-2026-91398](https://patchblox.com/security/data/cve/CVE-2026-91398.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0023 | | | [CVE-2026-91463](https://patchblox.com/security/data/cve/CVE-2026-91463.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0023 | | | [CVE-2026-83381](https://patchblox.com/security/data/cve/CVE-2026-83381.md) | Routine | Vulnerability in Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from th | 6.8 | 0.0023 | | | [CVE-2026-83378](https://patchblox.com/security/data/cve/CVE-2026-83378.md) | Routine | java-21-openjdk: The OpenJDK 21 packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java Software Development Kit | 6.8 | 0.0021 | | | [CVE-2026-91335](https://patchblox.com/security/data/cve/CVE-2026-91335.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0021 | | | [CVE-2026-91334](https://patchblox.com/security/data/cve/CVE-2026-91334.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0021 | | | [CVE-2026-91461](https://patchblox.com/security/data/cve/CVE-2026-91461.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0019 | | | [CVE-2026-91374](https://patchblox.com/security/data/cve/CVE-2026-91374.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0017 | | | [CVE-2026-91487](https://patchblox.com/security/data/cve/CVE-2026-91487.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0017 | | | [CVE-2026-91379](https://patchblox.com/security/data/cve/CVE-2026-91379.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0012 | | | [CVE-2026-91380](https://patchblox.com/security/data/cve/CVE-2026-91380.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0010 | | | [CVE-2026-91397](https://patchblox.com/security/data/cve/CVE-2026-91397.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0010 | | | [CVE-2026-91375](https://patchblox.com/security/data/cve/CVE-2026-91375.md) | Routine | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 6.8 | 0.0009 | | --- Data as of 2026-11-07T18:46:35Z UTC. 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