# RHSA-2026:9683: Security update for 20 packages

RHSA-2026:9683, released April 30, 2026, fixes 12 CVEs across 20 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-9683
- Platform: Linux
- Released: Apr 30, 2026
- Priority: High (Closes CVE-2026-33416, high severity)
- CVEs: 12, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:9683

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [java-1.8.0-openjdk](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-accessibility](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-accessibility.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-accessibility-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-accessibility-fastdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-accessibility-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-accessibility-slowdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-demo](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-demo.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-demo](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-demo.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-demo-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-demo-fastdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-demo-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-demo-fastdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-demo-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-demo-slowdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-demo-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-demo-slowdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-devel](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-devel.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-devel](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-devel.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-devel-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-devel-fastdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-devel-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-devel-fastdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-devel-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-devel-slowdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-devel-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-devel-slowdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-fastdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-fastdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-headless](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-headless.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-headless](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-headless.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-headless-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-headless-fastdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-headless-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-headless-fastdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-headless-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-headless-slowdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-headless-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-headless-slowdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-javadoc](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-javadoc.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-javadoc](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-javadoc.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-javadoc-zip](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-javadoc-zip.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-javadoc-zip](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-javadoc-zip.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-slowdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-slowdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-src](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-src.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-src](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-src.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-src-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-src-fastdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-src-fastdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-src-fastdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |
| [java-1.8.0-openjdk-src-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-src-slowdebug.md) | RHEL 8 | 1:1.8.0.492.b09-1.el8 |
| [java-1.8.0-openjdk-src-slowdebug](https://patchblox.com/security/data/product/linux/java-1.8.0-openjdk-src-slowdebug.md) | RHEL 9 | 1:1.8.0.492.b09-2.el9 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-33416](https://patchblox.com/security/data/cve/CVE-2026-33416.md) | High | LIBPNG has use-after-free via pointer aliasing in `png_set_tRNS` and `png_set_PLTE` | 8.8 | 0.0107 |  |
| [CVE-2026-33636](https://patchblox.com/security/data/cve/CVE-2026-33636.md) | High | LIBPNG has ARM NEON Palette Expansion Out-of-Bounds Read on AArch64 | 8.8 | 0.0075 |  |
| [CVE-2026-22016](https://patchblox.com/security/data/cve/CVE-2026-22016.md) | High | Java(TM) SE Development Kit 21 and 1 other: Exposure of Sensitive Information to an Unauthorized Actor | 7.6 | 0.0070 |  |
| [CVE-2026-26740](https://patchblox.com/security/data/cve/CVE-2026-26740.md) | High | java-17-openjdk: The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Develop... | 8.2 | 0.0066 |  |
| [CVE-2026-22021](https://patchblox.com/security/data/cve/CVE-2026-22021.md) | High | Java(TM) SE Development Kit 21 and 1 other: Uncontrolled Resource Consumption | 7.6 | 0.0031 |  |
| [CVE-2026-22018](https://patchblox.com/security/data/cve/CVE-2026-22018.md) | High | Java(TM) SE Development Kit 21 and 1 other: Allocation of Resources Without Limits or Throttling | 7.6 | 0.0027 |  |
| [CVE-2026-22013](https://patchblox.com/security/data/cve/CVE-2026-22013.md) | High | Java(TM) SE Development Kit 21 and 1 other: Protection Mechanism Failure | 7.6 | 0.0026 |  |
| [CVE-2026-22695](https://patchblox.com/security/data/cve/CVE-2026-22695.md) | High | LIBPNG has a heap buffer over-read in png_image_read_direct_scaled (regression from CVE-2025-65018 fix) | 7.1 | 0.0022 |  |
| [CVE-2026-23865](https://patchblox.com/security/data/cve/CVE-2026-23865.md) | High | An integer overflow in the tt_var_load_item_variation_store function of the Freetype library in versions 2.13.2 and 2.13.3 may allow for an out of bounds read operation when parsing HVAR/VVAR/MVAR tables in OpenType variable fonts. This issue is fixed in version 2.14.2. | 7.6 | 0.0017 |  |
| [CVE-2026-22801](https://patchblox.com/security/data/cve/CVE-2026-22801.md) | High | LIBPNG has an integer truncation causing heap buffer over-read in png_image_write_* | 7.8 | 0.0013 |  |
| [CVE-2026-22007](https://patchblox.com/security/data/cve/CVE-2026-22007.md) | High | Java(TM) SE Development Kit 21 and 1 other: Exposure of Sensitive Information to an Unauthorized Actor | 7.6 | 0.0012 |  |
| [CVE-2026-34268](https://patchblox.com/security/data/cve/CVE-2026-34268.md) | High | Java(TM) SE Development Kit 21 and 1 other: Exposure of Sensitive Information to an Unauthorized Actor | 7.6 | 0.0012 |  |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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