# FEDORA-2026-6C3A4775A6: Security update for 9 packages

FEDORA-2026-6C3A4775A6, released November 13, 2026, fixes 13 CVEs across 9 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/fedora-2026-6c3a4775a6
- Platform: Linux
- Released: Nov 13, 2026
- Priority: High (Closes CVE-2026-102559, high severity)
- CVEs: 13, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://bodhi.fedoraproject.org/updates/FEDORA-2026-6c3a4775a6

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libsoup3](https://patchblox.com/security/data/product/linux/libsoup3.md) | Fedora 43 | 3.6.6-6.fc43 |
| [libsoup3-debuginfo](https://patchblox.com/security/data/product/linux/libsoup3-debuginfo.md) | Fedora 43 | 3.6.6-6.fc43 |
| [libsoup3-debugsource](https://patchblox.com/security/data/product/linux/libsoup3-debugsource.md) | Fedora 43 | 3.6.6-6.fc43 |
| [libsoup3-devel](https://patchblox.com/security/data/product/linux/libsoup3-devel.md) | Fedora 43 | 3.6.6-6.fc43 |
| [libsoup3-doc](https://patchblox.com/security/data/product/linux/libsoup3-doc.md) | Fedora 43 | 3.6.6-6.fc43 |
| [mingw32-libsoup3](https://patchblox.com/security/data/product/linux/mingw32-libsoup3.md) | Fedora 43 | 3.6.6-6.fc43 |
| [mingw32-libsoup3-debuginfo](https://patchblox.com/security/data/product/linux/mingw32-libsoup3-debuginfo.md) | Fedora 43 | 3.6.6-6.fc43 |
| [mingw64-libsoup3](https://patchblox.com/security/data/product/linux/mingw64-libsoup3.md) | Fedora 43 | 3.6.6-6.fc43 |
| [mingw64-libsoup3-debuginfo](https://patchblox.com/security/data/product/linux/mingw64-libsoup3-debuginfo.md) | Fedora 43 | 3.6.6-6.fc43 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-102559](https://patchblox.com/security/data/cve/CVE-2026-102559.md) | High | Libsoup: libsoup: heap buffer overflow during websocket client-frame masking | 8.6 | 0.0063 |  |
| [CVE-2026-102560](https://patchblox.com/security/data/cve/CVE-2026-102560.md) | High | Libsoup: libsoup: heap buffer overflow during outgoing permessage-deflate buffer growth | 8.6 | 0.0061 |  |
| [CVE-2026-102558](https://patchblox.com/security/data/cve/CVE-2026-102558.md) | High | Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth | 8.6 | 0.0060 |  |
| [CVE-2026-102555](https://patchblox.com/security/data/cve/CVE-2026-102555.md) | High | Libsoup: libsoup: heap buffer overflow via uninitialized length in data-uri base64 decoding | 8.2 | 0.0048 |  |
| [CVE-2026-102556](https://patchblox.com/security/data/cve/CVE-2026-102556.md) | High | Libsoup: libsoup: heap buffer overflow from websocket pong signal type confusion | 8.6 | 0.0047 |  |
| [CVE-2026-102557](https://patchblox.com/security/data/cve/CVE-2026-102557.md) | High | Libsoup: libsoup: heap buffer overflow during websocket message reassembly | 8.6 | 0.0047 |  |
| [CVE-2026-85197](https://patchblox.com/security/data/cve/CVE-2026-85197.md) | High | Libsoup: libsoup: heap use-after-free in libsoup http/2 client on_data_read() via goaway during body upload | 7.6 | 0.0034 |  |
| [CVE-2026-3099](https://patchblox.com/security/data/cve/CVE-2026-3099.md) | Routine | Libsoup: libsoup: authentication bypass via digest authentication replay attack | 5.8 | 0.0042 |  |
| [CVE-2026-85534](https://patchblox.com/security/data/cve/CVE-2026-85534.md) | Routine | Libsoup: libsoup: http/2 client crash in on_data_source_read_callback when settings initial_window_size shrinks during deferred body read | 5.9 | 0.0032 |  |
| [CVE-2026-3633](https://patchblox.com/security/data/cve/CVE-2026-3633.md) | Routine | Libsoup: libsoup: header and http request injection via crlf injection | 3.9 | 0.0027 |  |
| [CVE-2026-3632](https://patchblox.com/security/data/cve/CVE-2026-3632.md) | Routine | Libsoup: libsoup: http smuggling and server-side request forgery via malformed hostnames | 3.9 | 0.0025 |  |
| [CVE-2026-103399](https://patchblox.com/security/data/cve/CVE-2026-103399.md) | Routine | Libsoup: soupserver: http/1 request smuggling via undrained expect: 100-continue body | 5.3 | 0.0025 |  |
| [CVE-2026-3634](https://patchblox.com/security/data/cve/CVE-2026-3634.md) | Routine | Libsoup: libsoup: http header injection and response splitting via crlf injection in content-type header | 3.9 | 0.0022 |  |

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Data as of 2026-11-13T08:00:37Z 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

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