HIGH 8.6 NVD
CVE-2026-102559
A flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation AP
A flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow.
References
- https://access.redhat.com/security/cve/CVE-2026-102559
- https://bugzilla.redhat.com/show_bug.cgi?id=2543285
This high severity vulnerability with a CVSS score of 8.6 was published on 2026-09-29 via NVD.
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