CVE-2026-110835: freerdp freerdp

CVSS 6.3 (medium) · published 2026-10-14

FreeRDP 3.0.0 before 3.32.0 allows HTTP header injection in its proxy because a lone LF in the target portion of a routing token (Cookie: msts=) is not rejected and is written by http_proxy_connect into the CONNECT request line and Host header. A remote unauthenticated RDP client connecting to a proxy using FixedTarget=false and an upstream HTTP proxy can alter HTTP request/header framing at that upstream proxy.

Affected products (NVD): freerdp freerdp

Fixed in (NVD): 3.32.0

Weakness: CWE-93

Source: NVD CVE-2026-110835

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-87v8-2gwr-ww9j
• https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-http-header-injection-via-proxy-routing-token
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-87v8-2gwr-ww9j

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