CVE-2026-102556
HIGH
NVD
CVSS Score
8.6
Severity
HIGH
Published
Sep 29, 2026
Vendor
unknown
Description
A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.