# RHSA-2026:19176: Security update for 14 packages

RHSA-2026:19176, released May 27, 2026, fixes 8 CVEs across 14 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-19176
- Platform: Linux
- Released: May 27, 2026
- Priority: High (Closes CVE-2026-4224, high severity)
- CVEs: 8, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:19176

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [python3.14](https://patchblox.com/security/data/product/linux/python3.14.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-debug](https://patchblox.com/security/data/product/linux/python3.14-debug.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-devel](https://patchblox.com/security/data/product/linux/python3.14-devel.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-freethreading](https://patchblox.com/security/data/product/linux/python3.14-freethreading.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-freethreading-debug](https://patchblox.com/security/data/product/linux/python3.14-freethreading-debug.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-freethreading-devel](https://patchblox.com/security/data/product/linux/python3.14-freethreading-devel.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-freethreading-idle](https://patchblox.com/security/data/product/linux/python3.14-freethreading-idle.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-freethreading-libs](https://patchblox.com/security/data/product/linux/python3.14-freethreading-libs.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-freethreading-test](https://patchblox.com/security/data/product/linux/python3.14-freethreading-test.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-freethreading-tkinter](https://patchblox.com/security/data/product/linux/python3.14-freethreading-tkinter.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-idle](https://patchblox.com/security/data/product/linux/python3.14-idle.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-libs](https://patchblox.com/security/data/product/linux/python3.14-libs.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-test](https://patchblox.com/security/data/product/linux/python3.14-test.md) | RHEL 9 | 0:3.14.4-2.el9_8 |
| [python3.14-tkinter](https://patchblox.com/security/data/product/linux/python3.14-tkinter.md) | RHEL 9 | 0:3.14.4-2.el9_8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-4224](https://patchblox.com/security/data/cve/CVE-2026-4224.md) | High | Stack overflow parsing XML with deeply nested DTD content models | 8.1 | 0.0072 |  |
| [CVE-2026-6100](https://patchblox.com/security/data/cve/CVE-2026-6100.md) | High | Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure | 9.1 | 0.0058 |  |
| [CVE-2026-0865](https://patchblox.com/security/data/cve/CVE-2026-0865.md) | High | wsgiref.headers.Headers allows header newline injection | 8.1 | 0.0055 |  |
| [CVE-2026-1502](https://patchblox.com/security/data/cve/CVE-2026-1502.md) | High | HTTP client proxy tunnel headers not validated for CR/LF | 8.1 | 0.0054 |  |
| [CVE-2026-3644](https://patchblox.com/security/data/cve/CVE-2026-3644.md) | High | Incomplete control character validation in http.cookies | 8.1 | 0.0051 |  |
| [CVE-2026-4519](https://patchblox.com/security/data/cve/CVE-2026-4519.md) | High | webbrowser.open() allows leading dashes in URLs | 8.1 | 0.0032 |  |
| [CVE-2026-2297](https://patchblox.com/security/data/cve/CVE-2026-2297.md) | High | SourcelessFileLoader does not use io.open_code() | 8.1 | 0.0022 |  |
| [CVE-2026-5713](https://patchblox.com/security/data/cve/CVE-2026-5713.md) | High | Out-of-bounds read/write during remote profiling and asyncio process introspection when connecting to malicious target | 8.1 | 0.0013 |  |

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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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