Issued at: 2026-10-20
Updated at: 2026-10-20
Advisory content derived from Red Hat RHSA-2026:84586, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: libsoup security update
Description
The libsoup packages provide an HTTP client and server library for GNOME.
Security Fix(es):
* libsoup: libsoup: Heap buffer overflow from WebSocket Pong signal type confusion (CVE-2026-102556)
* libsoup: libsoup: Heap buffer overflow during WebSocket message reassembly (CVE-2026-102557)
* libsoup: libsoup: Heap buffer overflow during WebSocket receive-buffer growth (CVE-2026-102558)
* libsoup: libsoup: Heap buffer overflow during WebSocket client-frame masking (CVE-2026-102559)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.