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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

History

Tue, 17 Mar 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 17 Mar 2026 10:00:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE. 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.
Title libsoup: libsoup: Header and HTTP request injection via CRLF injection Libsoup: libsoup: header and http request injection via crlf injection
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References

Mon, 09 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Libsoup
Libsoup libsoup
Vendors & Products Libsoup
Libsoup libsoup

Fri, 06 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE.
Title libsoup: libsoup: Header and HTTP request injection via CRLF injection
Weaknesses CWE-93
References
Metrics threat_severity

None

cvssV3_1

{'score': 3.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L'}

threat_severity

Low


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-03-17T12:59:56.047Z

Reserved: 2026-03-06T07:57:52.748Z

Link: CVE-2026-3633

cve-icon Vulnrichment

Updated: 2026-03-17T12:59:51.860Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-17T10:16:00.677

Modified: 2026-03-17T14:20:01.670

Link: CVE-2026-3633

cve-icon Redhat

Severity : Low

Publid Date: 2026-03-06T05:05:00Z

Links: CVE-2026-3633 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-03-09T10:08:42Z

Weaknesses