CRITICALVulnerability
Verified
Global

NVD CRITICAL: CVE-2026-67289 — FreeRDP before 3.29.0 (affected versions <= 3.28.0) does not validate CRLF and c...

·Source: NIST NVD

Updated:

Executive Summary

FreeRDP before 3.29.0 (affected versions <= 3.28.0) does not validate CRLF and control characters in the server-controlled RDP redirection TargetNetAddress field. This value is copied into the client's ServerHostname and, when the client connects through an HTTP proxy, is written directly into the proxy CONNECT request line and Host header by http_proxy_connect() without filtering. A malicious or

Analysis

FreeRDP before 3.29.0 (affected versions <= 3.28.0) does not validate CRLF and control characters in the server-controlled RDP redirection TargetNetAddress field. This value is copied into the client's ServerHostname and, when the client connects through an HTTP proxy, is written directly into the proxy CONNECT request line and Host header by http_proxy_connect() without filtering. A malicious or compromised RDP server can send a crafted redirection PDU containing embedded control characters to inject arbitrary headers/requests into the HTTP proxy CONNECT request. CVSS Score: 9.8. Published: 2026-08-01T13:16:57.803.

Indicators of Compromise (1)

CVE (1)
CVE-2026-67289
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Aug 1, 2026. Verified by: NIST.

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