CRLF Injection Affecting libsoup2.4 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBSOUP24-18291553
  • published24 Jul 2026
  • disclosed17 Mar 2026

Introduced: 17 Mar 2026

CVE-2026-3633  (opens in a new tab)
CWE-93  (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. A remote attacker, by controlling the method parameter of the soup_message_new() function, could inject arbitrary headers and additional request data. This vulnerability, known as CRLF (Carriage Return Line Feed) injection, occurs because the method value is not properly escaped during request line construction, potentially leading to HTTP request injection.

CVSS Base Scores

version 3.1