Linux · SUSE Linux Enterprise · Security advisory · November 7, 2026
SUSE-SU-2026:4631-1: libsoup security update
SUSE-SU-2026:4631-1, released November 7, 2026, fixes 9 CVEs in libsoup (version 3.4.4-150600.3.59.1). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
9
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 9 CVEs
Patch now 0
Urgent 0
High 6
Routine 3
Fixed package versions
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-2026-102558 | Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth | 8.6 | 0.0060 | None reported |
| High | CVE-2026-102560 | Libsoup: libsoup: heap buffer overflow during outgoing permessage-deflate buffer growth | 8.6 | 0.0052 | 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 |
| Routine | CVE-2026-15713 | Libsoup: soupcache: libsoup: http/2 frame window exhaustion remote denial of service via memory leak | 5.9 | 0.0035 | None reported |
| Routine | CVE-2026-2708 | Libsoup: libsoup: http request smuggling via duplicate content-length headers | 3.7 | 0.0032 | None reported |
| Routine | CVE-2026-12548 | gir1.2-soup-2.4: A heap out-of-bounds read flaw was found in libsoup | n/a | 0.0025 | None reported |
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