HTTP Request Smuggling Affecting libsoup2.4 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBSOUP24-18291544
  • published24 Jul 2026
  • disclosed3 Feb 2026

Introduced: 3 Feb 2026

CVE-2026-1801  (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 flaw was found in libsoup, an HTTP client/server library. This HTTP Request Smuggling vulnerability arises from non-RFC-compliant parsing in the soup_filter_input_stream_read_line() logic, where libsoup accepts malformed chunk headers, such as lone line feed (LF) characters instead of the required carriage return and line feed (CRLF). A remote attacker can exploit this without authentication or user interaction by sending specially crafted chunked requests. This allows libsoup to parse and process multiple HTTP requests from a single network message, potentially leading to information disclosure.

CVSS Base Scores

version 3.1