CVE-2026-2708

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soup_message_headers_append_common() function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker to send HTTP requests containing multiple Content-Length headers with differing values.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-444

Affected software

No affected versions have been published.

Timeline

Published: Apr 23, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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