CVE-2026-110836

A flaw was found in FreeRDP. A remote attacker controlling a Remote Desktop gateway can cause a Denial of Service (DoS) by returning a crafted HTTP response containing an unrecognized Content-Type header with a semicolon and a nonzero Content-Length. This flaw triggers an infinite loop in the client's response parser, exhausting client processor resources and causing the connection thread to hang indefinitely.

This flaw is rated Moderate because a malicious or compromised RDP server can crash the FreeRDP client when crafted gateway Content-Type handling is used, causing a denial of service for the connecting user. Exploitation requires the user to initiate a connection (UI:R). Confidentiality and integrity are not impacted. Red Hat platform safeguards such as ASLR, NX, and FORTIFY_SOURCE do not remove the crash impact, so Availability remains High.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Avoid connecting through untrusted RD Gateway hosts. Restrict FreeRDP gateway use to trusted infrastructure.