CVE-2026-15711: Libsoup: soupwebsocketconnection: libsoup: websocket remote denial of service via oversized control frame protocol violation

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-17

Last Updated

2026-09-24

EPSS Score

0.74% (percentile: 53.8%)

Affected Products (2)

Other

• 21478-17084
• 21895-17084

Revision History

• 2026-07-17: Information published.
• 2026-09-13: Information published.
• 2026-09-23: Information published.
• 2026-09-24: Information published.
• 2026-09-24: Information published.