CVE-2026-3633

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 v3 3.9 LOW

3.9^/10

CVSS v3 : LOW

Vector :

Exploitability : 0.5 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-3633	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2445128	Issue Tracking Vendor Advisory
https://gitlab.gnome.org/GNOME/libsoup/-/issues/484	Exploit Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gnome:libsoup:-:::::::*
	cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:10.0:::::::*

History

No history.

Information

Published : 2026-03-17 10:16

Updated : 2026-03-19 19:53

NVD link : CVE-2026-3633

Mitre link : CVE-2026-3633

CVE.ORG link : CVE-2026-3633

JSON object : View

Products Affected

gnome

libsoup

redhat

enterprise_linux

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

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