CVE-2026-110835

MEDIUMCVSS 4.0

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.

Timeline

Published:October 14th, 2026 11:17 PM

Last modified:October 15th, 2026 3:54 PM

CVSS Scoring

CVSS v3: 4.0 (MEDIUM)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Weaknesses (CWE)

CWE-93

References & Reports

Advisories, patches, and third-party reports

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-87v8-2gwr-ww9j
https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-http-header-injection-via-proxy-routing-token

Source: NIST NVD · Data may lag official sources by up to one minute