Allocation of Resources Without Limits or Throttling in FreeRDP - CVE-2026-67297
Published: July 16, 2026 / Updated: September 14, 2026
Vulnerability identifier: #VU137833
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-67297
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper limitation of a pathname to a restricted directory in http_response_recv_body() when processing chunked HTTP response bodies from an RD Gateway or gateway HTTP endpoint. A remote attacker can send an oversized chunked HTTP response to cause a denial of service.
The issue affects the client-side chunked transfer path, where oversized response bodies are accepted and stored without applying the intended response size limit.
Affected software
FreeRDP
How to mitigate CVE-2026-67297
Install security update from vendor's website.
FreeRDP - update to 3.29.0