---
id: CVE-2026-84850
title: "Improper certificate validation in the shared HTTP client used by synchronization and integration features in\_Devolutions Server 2026.2.16 and earlier allows a network-positioned attacker to intercept and tamper with outbound TLS connect…"
summary: "Improper certificate validation in the shared HTTP client used by synchronization and integration features in\_Devolutions Server 2026.2.16 and earlier allows a network-positioned attacker to intercept and tamper with outbound TLS connect…"
severity: medium
cvss: 4.8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-295
vendor: Devolutions
product: Server
affected:
  - Server <= 2026.2.16
published: '2026-09-15'
updated: '2026-09-20'
sourceUpdated: '2026-09-20T01:16:30.577'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84850'
references:
  - url: 'https://devolutions.net/security/advisories/DEVO-2026-0030/'
    label: security@devolutions.net
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-20T00:38:04.134483Z'
epss: 0.00141
epssPercentile: 0.02812
ingestedAt: '2026-09-15T19:42:58.812Z'
---

## Overview

Improper certificate validation in the shared HTTP client used by synchronization and integration features in Devolutions Server 2026.2.16 and earlier allows a network-positioned attacker to intercept and tamper with outbound TLS connections via a spoofed or self-signed certificate.

## Remediation

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