CVE-2026-110836: FreeRDP 3.0.0 before 3.32.0 Infinite Loop DoS via Gateway Content-Type

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-10-14 · updated 2026-10-23
Weakness: CWE-835

Description

FreeRDP from 3.0.0 before 3.32.0 contains an infinite loop vulnerability in http_response_recv() that allows malicious gateways to exhaust client CPU via crafted Content-Type headers. Attackers controlling a gateway can return a nonzero Content-Length with a semicolon-containing unrecognized Content-Type, pinning a client thread at full CPU indefinitely.

Affected products

FreeRDP: from 3.0.0 before 3.32.0 — fixed in 3.32.0

How to fix

Upgrade to a fixed version: FreeRDP 3.32.0. Check the vendor advisory for mitigations.

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h7fx-22wv-4cg8
https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-infinite-loop-dos-via-gateway-content-type
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h7fx-22wv-4cg8

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