# SUSE-SU-2026:4558-1: libsoup security update

SUSE-SU-2026:4558-1, released October 7, 2026, fixes 6 CVEs in libsoup (version 3.4.4-150600.3.56.1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/suse-su-2026-4558-1
- Platform: Linux
- Released: Oct 7, 2026
- Priority: High (Closes CVE-2026-15711, high severity)
- CVEs: 6, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/SUSE-SU-2026:4558-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libsoup](https://patchblox.com/security/data/product/linux/libsoup.md) | sles 15.6 | 3.4.4-150600.3.56.1 |
| [libsoup](https://patchblox.com/security/data/product/linux/libsoup.md) | sles 15.7 | 3.4.4-150600.3.56.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-15711](https://patchblox.com/security/data/cve/CVE-2026-15711.md) | High | Libsoup: soupwebsocketconnection: libsoup: websocket remote denial of service via oversized control frame protocol violation | 7.5 | 0.0075 |  |
| [CVE-2026-15712](https://patchblox.com/security/data/cve/CVE-2026-15712.md) | Routine | Soupclientmessageiohttp2: libsoup3: libsoup: http/2 goaway frame parsing heap buffer over-read via invalid nul-termination assumption | 5.9 | 0.0063 |  |
| [CVE-2026-15714](https://patchblox.com/security/data/cve/CVE-2026-15714.md) | Routine | Libsoup: soupmultipartinputstream: libsoup: out-of-bounds read in soup_multipart_input_stream_read_headers via an oversized multipart boundary string | 6.5 | 0.0039 |  |
| [CVE-2026-66339](https://patchblox.com/security/data/cve/CVE-2026-66339.md) | Routine | gir1.2-soup-2.4: A flaw was found in libsoup | n/a | 0.0025 |  |
| [CVE-2026-12478](https://patchblox.com/security/data/cve/CVE-2026-12478.md) | Routine | libsoup3: The fix for CVE-2026-0716 (commit 6ff7ef0, libsoup 3.6.6) placed the integer overflow guard inside the if (masked) bl... | 4.8 | 0.0024 |  |
| [CVE-2026-12547](https://patchblox.com/security/data/cve/CVE-2026-12547.md) | Routine | Libsoup: information disclosure in libsoup via soupauthmanager proxy credential leak on proxy switch | 3.4 | 0.0023 |  |

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Data as of 2026-11-10T20:03:11Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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