# RHSA-2026:0836: libsoup3 security update

RHSA-2026:0836, released December 11, 2025, fixes 1 CVE in libsoup3 (version 3.6.5-3.el10_0.11). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-0836
- Platform: Linux
- Released: Dec 11, 2025
- Priority: High (Closes CVE-2025-14523, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:0836

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libsoup3](https://patchblox.com/security/data/product/linux/libsoup3.md) | RHEL 10 | 3.6.5-3.el10_0.11 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-14523](https://patchblox.com/security/data/cve/CVE-2025-14523.md) | High | Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins) | 8.2 | 0.0054 |  |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo