CVE-2026-66337

MediumCVSS 6.5/10Last modified Aug 24, 2026

Description

A flaw was found in libsoup. An unsigned integer underflow in the soup_filter_input_stream_read_until() function causes a heap buffer over-read when parsing multipart HTTP responses. A malicious HTTP server can exploit this by sending a crafted multipart response, potentially causing the client application to crash or disclose sensitive heap memory.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Weakness enumeration

CWE-125

Affected software

No affected versions have been published.

Timeline

Published: Jul 24, 2026
Last modified: Aug 24, 2026
NVD status: Analyzed

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