CVE-2026-84850: CWE-295 Improper certificate validation in Devolutions Server
CVE-2026-84850 is a vulnerability in Devolutions Server versions up to 2026.2.16 that involves improper certificate validation in the shared HTTP client used by synchronization and integration features. This flaw allows a network-positioned attacker to intercept and tamper with outbound TLS connections by presenting a spoofed or self-signed certificate.
AI Analysis
Technical Summary
This vulnerability (CWE-295) affects Devolutions Server 2026.2.16 and earlier. The shared HTTP client used for synchronization and integration does not properly validate TLS certificates, enabling an attacker positioned on the network to perform man-in-the-middle attacks by using spoofed or self-signed certificates to intercept and modify outbound TLS traffic.
Potential Impact
An attacker with network positioning can intercept and tamper with TLS connections initiated by the affected Devolutions Server, potentially compromising the confidentiality and integrity of data transmitted during synchronization and integration operations.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit exposure by restricting network access to trusted environments and monitoring for suspicious network activity related to Devolutions Server communications.
CVE-2026-84850: CWE-295 Improper certificate validation in Devolutions Server
Description
CVE-2026-84850 is a vulnerability in Devolutions Server versions up to 2026.2.16 that involves improper certificate validation in the shared HTTP client used by synchronization and integration features. This flaw allows a network-positioned attacker to intercept and tamper with outbound TLS connections by presenting a spoofed or self-signed certificate.
Affected software
Devolutions
Server
pkg:github/devolutions/serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-295) affects Devolutions Server 2026.2.16 and earlier. The shared HTTP client used for synchronization and integration does not properly validate TLS certificates, enabling an attacker positioned on the network to perform man-in-the-middle attacks by using spoofed or self-signed certificates to intercept and modify outbound TLS traffic.
Potential Impact
An attacker with network positioning can intercept and tamper with TLS connections initiated by the affected Devolutions Server, potentially compromising the confidentiality and integrity of data transmitted during synchronization and integration operations.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit exposure by restricting network access to trusted environments and monitoring for suspicious network activity related to Devolutions Server communications.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- DEVOLUTIONS
- Date Reserved
- 2026-09-02T12:53:37.050Z
- State
- PUBLISHED
Threat ID: 6aa9c2a255bf5e2cf572c579
Added to database: 09/15/2026, 22:11:46 UTC
Last enriched: 09/15/2026, 22:15:24 UTC
Last updated: 09/16/2026, 04:01:23 UTC
Views: 7
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