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CVE-2026-102559

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10unaffected 0:3.6.5-3.el10_2.20 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:2.62.3-19.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:2.62.3-19.el8_10 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:2.72.0-16.el9_8.8 before *
Red Hat / Red Hat Enterprise Linux 6unknown
Red Hat / Red Hat Enterprise Linux 7affected

CWE

CWE-125

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.