Platform
other
Component
hub-reporting-service
Opgelost in
2025.3.2
CVE-2026-4396 describes a critical vulnerability affecting Devolutions Hub Reporting Service versions up to and including 2025.3.1.1. This improper certificate validation allows a network attacker to conduct a man-in-the-middle (MITM) attack by bypassing TLS certificate verification. A fix is available from Devolutions, requiring users to upgrade to a patched version.
The core of this vulnerability lies in the disabled TLS certificate verification within the Hub Reporting Service. This means an attacker positioned between the client and the server can intercept and potentially modify network traffic without being detected. A successful MITM attack could lead to the compromise of sensitive data transmitted through the service, including credentials, confidential documents, and other protected information. The impact is particularly severe as it allows for both passive eavesdropping and active manipulation of data in transit, potentially leading to unauthorized access and data breaches. This vulnerability highlights the importance of robust TLS certificate validation to ensure the integrity and confidentiality of network communications.
CVE-2026-4396 was publicly disclosed on 2026-03-18. There is no indication of active exploitation or a KEV listing at this time. Public proof-of-concept (PoC) code is currently unavailable, but the nature of the vulnerability (MITM) suggests it could be relatively straightforward to exploit once a PoC is developed. Monitor security advisories and threat intelligence feeds for any indications of exploitation.
Organizations utilizing Devolutions Hub Reporting Service, particularly those with sensitive data or operating in environments with potential network threats, are at risk. Environments where the service is exposed to untrusted networks or where certificate validation has been intentionally disabled are especially vulnerable.
disclosure
Exploit Status
EPSS
0.01% (2% percentiel)
The primary mitigation for CVE-2026-4396 is to upgrade Devolutions Hub Reporting Service to a patched version as soon as it becomes available. Until the upgrade can be performed, consider implementing network segmentation to isolate the Hub Reporting Service from untrusted networks. Additionally, enforce strict firewall rules to limit access to the service only to authorized clients. While not a direct fix, using a secure network proxy or VPN can provide an additional layer of protection by encrypting traffic and verifying certificate chains. After upgrading, confirm the fix by verifying that TLS certificate validation is enabled and that connections are established with valid certificates.
Werk Devolutions Hub Reporting Service bij naar een versie later dan 2025.3.1.1 om de onjuiste TLS certificaatvalidatie te corrigeren en man-in-the-middle aanvallen te voorkomen. Raadpleeg het beveiligingsadvies van de leverancier voor meer details en specifieke update-instructies.
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CVE-2026-4396 is a vulnerability in Devolutions Hub Reporting Service allowing attackers to perform man-in-the-middle attacks due to improper certificate validation.
You are affected if you are using Devolutions Hub Reporting Service versions 2025.3.1.1 or earlier.
Upgrade to a patched version of Devolutions Hub Reporting Service as soon as it is available from Devolutions.
There are currently no confirmed reports of active exploitation, but the vulnerability's nature suggests potential for exploitation.
Refer to the official Devolutions security advisory for the most up-to-date information and patch details.
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