Devolutions Server up to 2025.3.20.0/2026.1.16.0 API access control

Summaryinfo

A vulnerability was found in Devolutions Server up to 2025.3.20.0/2026.1.16.0. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component API. Performing a manipulation results in access control. This vulnerability is identified as CVE-2026-5171. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Devolutions Server up to 2025.3.20.0/2026.1.16.0. This affects an unknown function of the component API. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality. The summary by CVE is:

Improper access control in the entry activity log feature in Devolutions Server allows an authenticated user with access to an entry but without the required permission to retrieve that entry's activity logs via a crafted API request. This issue affects : * Devolutions Server 2026.1.6.0 through 2026.1.16.0 * Devolutions Server 2025.3.20.0 and earlier

It is possible to read the advisory at devolutions.net. This vulnerability is uniquely identified as CVE-2026-5171 since 03/30/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/26/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-31460) and CERT Bund (WID-SEC-2026-1665). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Devolutions Server

Productinfo

Vendor

• Devolutions

Name

• Server

Version

• 2025.3.0
• 2025.3.1
• 2025.3.2
• 2025.3.3
• 2025.3.4
• 2025.3.5
• 2025.3.6
• 2025.3.7
• 2025.3.8
• 2025.3.9
• 2025.3.10
• 2025.3.11
• 2025.3.12
• 2025.3.13
• 2025.3.14
• 2025.3.15
• 2025.3.16
• 2025.3.17
• 2025.3.18
• 2025.3.19
• 2025.3.20.0
• 2026.1.0
• 2026.1.1
• 2026.1.2
• 2026.1.3
• 2026.1.4
• 2026.1.5
• 2026.1.6
• 2026.1.7
• 2026.1.8
• 2026.1.9
• 2026.1.10
• 2026.1.11
• 2026.1.12
• 2026.1.13
• 2026.1.14
• 2026.1.15
• 2026.1.16.0

CPE 2.3info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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