CVE-2025-12105 — Libsoup: heap use-after-free in libsoup message queue handling during http/2 read completion
A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When netw…
Published: 2025-10-23 · CVSS: 7.5 · CVSS 3.1
A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed twice due to missing state synchronization. This leads to a use-after-free memory access, potentially crashing the affected application. Attackers could exploit this behavior remotely by triggering specific HTTP/2 read and cancel sequences, resulting in a denial-of-service condition.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7