Linux · 
Fedora · Security advisory · November 13, 2026
Fedora · Security advisory · November 13, 2026FEDORA-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.
High
CVEs closed
13
None rated Critical
Exploited
0
None reported
Highest CVSS
8.6
Base score, 0 to 10
Highest EPSS
0.0063
50th percentile
Priority of the 13 CVEs
Patch now 0
Urgent 0
High 7
Routine 6
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libsoup3 | Fedora 43 | 3.6.6-6.fc43 |
| libsoup3-debuginfo | Fedora 43 | 3.6.6-6.fc43 |
| libsoup3-debugsource | Fedora 43 | 3.6.6-6.fc43 |
| libsoup3-devel | Fedora 43 | 3.6.6-6.fc43 |
| libsoup3-doc | Fedora 43 | 3.6.6-6.fc43 |
| mingw32-libsoup3 | Fedora 43 | 3.6.6-6.fc43 |
| mingw32-libsoup3-debuginfo | Fedora 43 | 3.6.6-6.fc43 |
| mingw64-libsoup3 | Fedora 43 | 3.6.6-6.fc43 |
| mingw64-libsoup3-debuginfo | Fedora 43 | 3.6.6-6.fc43 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-102559 | Libsoup: libsoup: heap buffer overflow during websocket client-frame masking | 8.6 | 0.0063 | None reported |
| High | CVE-2026-102560 | Libsoup: libsoup: heap buffer overflow during outgoing permessage-deflate buffer growth | 8.6 | 0.0061 | None reported |
| High | CVE-2026-102558 | Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth | 8.6 | 0.0060 | None reported |
| High | CVE-2026-102555 | Libsoup: libsoup: heap buffer overflow via uninitialized length in data-uri base64 decoding | 8.2 | 0.0048 | None reported |
| High | CVE-2026-102556 | Libsoup: libsoup: heap buffer overflow from websocket pong signal type confusion | 8.6 | 0.0047 | None reported |
| High | CVE-2026-102557 | Libsoup: libsoup: heap buffer overflow during websocket message reassembly | 8.6 | 0.0047 | None reported |
| High | CVE-2026-85197 | Libsoup: libsoup: heap use-after-free in libsoup http/2 client on_data_read() via goaway during body upload | 7.6 | 0.0034 | None reported |
| Routine | CVE-2026-3099 | Libsoup: libsoup: authentication bypass via digest authentication replay attack | 5.8 | 0.0042 | None reported |
| Routine | CVE-2026-85534 | 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 | None reported |
| Routine | CVE-2026-3633 | Libsoup: libsoup: header and http request injection via crlf injection | 3.9 | 0.0027 | None reported |
| Routine | CVE-2026-3632 | Libsoup: libsoup: http smuggling and server-side request forgery via malformed hostnames | 3.9 | 0.0025 | None reported |
| Routine | CVE-2026-103399 | Libsoup: soupserver: http/1 request smuggling via undrained expect: 100-continue body | 5.3 | 0.0025 | None reported |
| Routine | CVE-2026-3634 | Libsoup: libsoup: http header injection and response splitting via crlf injection in content-type header | 3.9 | 0.0022 | None reported |
Showing 1 to 13 of 13
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