# RHSA-2026:28581: python3.14 security update

RHSA-2026:28581, released April 22, 2026, fixes 2 CVEs in python3.14 (version 3.14.5-1.el10_2). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-28581
- Platform: Linux
- Released: Apr 22, 2026
- Priority: High (Closes CVE-2026-4786, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:28581

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [python3.14](https://patchblox.com/security/data/product/linux/python3.14.md) | RHEL 10 | 3.14.5-1.el10_2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-4786](https://patchblox.com/security/data/cve/CVE-2026-4786.md) | High | Incomplete mitigation of CVE-2026-4519, %action expansion for command injection to webbrowser.open() | 8.1 | 0.0029 |  |
| [CVE-2026-6019](https://patchblox.com/security/data/cve/CVE-2026-6019.md) | High | BaseCookie.js_output() does not neutralize embedded characters | 7.1 | 0.0021 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo