FreeRDP 3.0.0 before 3.32.0 allows HTTP header injection in its proxy because a lone LF in the target portion of a routing token (Cookie: msts=) is not rejected and is written by http_proxy_connect into the CONNECT request line and Host header. A remote unauthenticated RDP client connecting to a proxy using FixedTarget=false and an upstream HTTP proxy can alter HTTP request/header framing at that upstream proxy.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 18 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 14 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
Description FreeRDP 3.0.0 before 3.32.0 allows HTTP header injection in its proxy because a lone LF in the target portion of a routing token (Cookie: msts=) is not rejected and is written by http_proxy_connect into the CONNECT request line and Host header. A remote unauthenticated RDP client connecting to a proxy using FixedTarget=false and an upstream HTTP proxy can alter HTTP request/header framing at that upstream proxy.
Title FreeRDP 3.0.0 before 3.32.0 HTTP Header Injection via Proxy Routing Token
First Time appeared Freerdp
Freerdp freerdp
Weaknesses CWE-93
CPEs cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Vendors & Products Freerdp
Freerdp freerdp
References
Metrics cvssV3_1

{'score': 4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-18T12:10:18.505Z

Reserved: 2026-10-14T22:11:15.575Z

Link: CVE-2026-110835

cve-icon Vulnrichment

Updated: 2026-10-18T12:10:10.533Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-10-14T23:17:23.433

Modified: 2026-10-18T12:17:08.707

Link: CVE-2026-110835

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-14T22:52:10Z

Links: CVE-2026-110835 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-15T12:30:04Z

Weaknesses