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.
References
| Link | Resource |
|---|---|
| https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f | Patch |
| https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mwwh-mhp9-q7vm | Vendor Advisory Exploit Mitigation |
| https://www.vulncheck.com/advisories/freerdp-before-http-proxy-request-injection-via-redirection | Patch Third Party Advisory |
Configurations
History
02 Oct 2026, 19:12
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* | |
| First Time |
Freerdp freerdp
Freerdp |
|
| References | () https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f - Patch | |
| References | () https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mwwh-mhp9-q7vm - Vendor Advisory, Exploit, Mitigation | |
| References | () https://www.vulncheck.com/advisories/freerdp-before-http-proxy-request-injection-via-redirection - Patch, Third Party Advisory |
Information
Published : 2026-08-01 13:16
Updated : 2026-10-02 19:12
NVD link : CVE-2026-67289
Mitre link : CVE-2026-67289
CVE.ORG link : CVE-2026-67289
JSON object : View
Products Affected
freerdp
- freerdp
CWE
CWE-113
Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')