CVE-2026-67289FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection
Updated under an hour ago ()
Does this affect you?
It affects FreeRDP. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-113
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Analyzed
- Record last updated
- Aug 5, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
FreeRDP FreeRDP freerdp:freerdp (from the name) | before 3.29.0; 3.29.0 not affected | CNA record |
freerdp freerdp freerdp:freerdp | before 3.29.0 | NVD |
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mwwh-mhp9-q7vmvendor-advisory, exploit, mitigation
- https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319fpatch
- https://www.vulncheck.com/advisories/freerdp-before-http-proxy-request-injection-via-redirectionthird-party-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.