Access of Resource Using Incompatible Type ('Type Confusion') Affecting libsoup3 package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.28% (21st percentile)

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  • Snyk IDSNYK-UBUNTU2610-LIBSOUP3-21218800
  • published22 Oct 2026
  • disclosed29 Sept 2026

Introduced: 29 Sep 2026

NewCVE-2026-102556  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:26.10 libsoup3.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsoup3 package and not the libsoup3 package as distributed by Ubuntu. See How to fix? for Ubuntu:26.10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1