CVEvulnerability
CVE-2026-102556
8.6 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-09-29
- Last modified
- 2026-10-19
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
- Weaknesses
- CWE-843
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.
Affected configurations
• gnome libsoup (< 3.7.3)
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
Related
Weakness · CWE (1)
- CWE-843 Access of Resource Using Incompatible Type weakness
References
- https://access.redhat.com/errata/RHSA-2026:83384 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:83618 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:84586 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-102556 Mitigation, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2543229 Issue Tracking, Vendor Advisory