---
id: CVE-2026-109245
title: >-
  FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation
  vulnerability in freerdp_http_request() in libfreerdp/utils/http.c that
  completes TLS handshakes without verifying the server certificate chain
summary: >-
  FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation
  vulnerability in freerdp_http_request() in libfreerdp/utils/http.c that
  completes TLS handshakes without verifying the server certificate chain.
  On-path attackers ca…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N'
cwe:
  - CWE-295
vendor: Red Hat
product: Red Hat Enterprise Linux 10
affected:
  - enterprise_linux 10
published: '2026-10-12'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:11:45.520'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109245'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h44v-39x6-9xvg'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-improper-certificate-validation-in-freerdp-http-request
    label: disclosure@vulncheck.com
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h44v-39x6-9xvg'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109245.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-109245'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2549811'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-109245'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109245'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
  - exploit-available
epss: 0.00236
epssPercentile: 0.14476
ingestedAt: '2026-10-12T18:00:08.174Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-13T18:00:43.214768Z'
---

## Overview

FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation vulnerability in freerdp_http_request() in libfreerdp/utils/http.c that completes TLS handshakes without verifying the server certificate chain. On-path attackers can impersonate login.microsoftonline.com in the Azure AD authentication flow to capture OAuth authorization codes and substitute the OpenID discovery document.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-13 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109245.json)