PT-2026-102754 · Red Hat · Red Hat Enterprise Linux 10+4

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CVE-2026-102559

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Published

2026-09-29

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Updated

2026-09-29

CVSS v3.1

8.6

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
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.

Fix

Out of bounds Read

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Weakness Enumeration

Related Identifiers

CVE-2026-102559

Affected Products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9