Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-67289

CVE-2026-67289CRITICAL

FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   H    9.3   .0070   51.6     —

AFFECTED
  Product  Versions     Fixed
  FreeRDP  unspecified  3.29.0

TIMELINE
  Jul 29  Reserved by VulnCheck
  Aug 1   Published (CNA: VulnCheck)
  Oct 2   EXPLOIT PUBLISHED — CVE-2026-67289 (FreeRDP). Public exploit reference added.

CWE-113 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Analyzed

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 29, 2026	Reserved	Reserved by VulnCheck
August 1, 2026	Published	Published (CNA: VulnCheck)
October 2, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-67289 (FreeRDP). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FreeRDP	FreeRDP	—	—	3.29.0

Weaknesses

CWE-113

References (3)

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]

Authoritative record: CVE-2026-67289 at cve.org

Vendors: freerdp

Weaknesses: CWE-113

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-67289 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.