CVE-2026-102557

HighCVSS 8.6/10Last modified Oct 19, 2026

Description

A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Sep 29, 2026
Last modified
Oct 19, 2026
NVD status
Modified

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CVE-2026-102557: High severity, CVSS 8.6 | Vulnix