CVE-2026-110835

MediumCVSS 5.8/10Last modified Oct 23, 2026

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.

Metrics

CVSS 3.1 5.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Weakness enumeration

CWE-93

Affected software

Vendor	Product	Versions
FreeRDP	FreeRDP	>= 3.0.0, < 3.32.0

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-87v8-2gwr-ww9jExploit, Vendor Advisory
https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-http-header-injection-via-proxy-routing-tokenThird Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-87v8-2gwr-ww9jExploit, Vendor Advisory

Timeline

Published: Oct 14, 2026
Last modified: Oct 23, 2026
NVD status: Analyzed

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