CVE-2026-102558

Description

A flaw was found in libsoup. When max-incoming-payload-size is unlimited (0), SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data.

CVSS Vector

References

• https://access.redhat.com/security/cve/CVE-2026-102558
• https://bugzilla.redhat.com/show_bug.cgi?id=2543274