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CVE-2026-102556

Libsoup: libsoup: heap buffer overflow from websocket pong signal type confusion PUBLISHED

Description (CNA)

A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.

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-843

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.