HTTP Request Smuggling Affecting libsoup2.4 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.32% (24th percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBSOUP24-18291548
  • published24 Jul 2026
  • disclosed23 Apr 2026

Introduced: 23 Apr 2026

CVE-2026-2708  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest libsoup2.4.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsoup2.4 package and not the libsoup2.4 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1