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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-102559

Libsoup: libsoup: heap buffer overflow during websocket client-frame masking

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Status
Published
Published
Updated
Assigning organization
redhat

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:3.6.5-3.el10_2.20 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:2.62.3-19.el8_10 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:2.62.3-19.el8_10 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Default version status: affected

  • 0:2.62.3-2.el8_4.14 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Default version status: affected

  • 0:2.62.3-2.el8_4.14 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:2.72.0-16.el9_8.8 to < *unaffected

Red Hat Red Hat Enterprise Linux 6

Default version status: unknown

Red Hat Red Hat Enterprise Linux 7

Default version status: affected

References