# RHSA-2026:1374: Security update for 8 packages

RHSA-2026:1374, released January 27, 2026, fixes 2 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-1374
- Platform: Linux
- Released: Jan 27, 2026
- Priority: High (Closes CVE-2025-13836, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:1374

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [python3.11](https://patchblox.com/security/data/product/linux/python3.11.md) | RHEL 8 | 0:3.11.13-4.el8_10 |
| [python3.11-debug](https://patchblox.com/security/data/product/linux/python3.11-debug.md) | RHEL 8 | 0:3.11.13-4.el8_10 |
| [python3.11-devel](https://patchblox.com/security/data/product/linux/python3.11-devel.md) | RHEL 8 | 0:3.11.13-4.el8_10 |
| [python3.11-idle](https://patchblox.com/security/data/product/linux/python3.11-idle.md) | RHEL 8 | 0:3.11.13-4.el8_10 |
| [python3.11-libs](https://patchblox.com/security/data/product/linux/python3.11-libs.md) | RHEL 8 | 0:3.11.13-4.el8_10 |
| [python3.11-rpm-macros](https://patchblox.com/security/data/product/linux/python3.11-rpm-macros.md) | RHEL 8 | 0:3.11.13-4.el8_10 |
| [python3.11-test](https://patchblox.com/security/data/product/linux/python3.11-test.md) | RHEL 8 | 0:3.11.13-4.el8_10 |
| [python3.11-tkinter](https://patchblox.com/security/data/product/linux/python3.11-tkinter.md) | RHEL 8 | 0:3.11.13-4.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-13836](https://patchblox.com/security/data/cve/CVE-2025-13836.md) | High | Excessive read buffering DoS in http.client | 7.5 | 0.0175 |  |
| [CVE-2025-12084](https://patchblox.com/security/data/cve/CVE-2025-12084.md) | High | Quadratic complexity in node ID cache clearing | 7.5 | 0.0086 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo