Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate with entry edit privileges
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DeliveryCraft asset modification request
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ExploitSubmit request bypassing permission validation
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ExecutionModify unauthorized asset information
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ImpactAlter PAM platform data integrity
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires the attacker to be authenticated to Devolutions Server with at least 'entry edit' privileges - this is an insider or compromised-account scenario, not an unauthenticated remote attack. The CVSS vector PR:N conflicts with this description-stated requirement and should be treated with caution until vendor clarification is available. The target system must be running Devolutions Server version 2026.1.19 or earlier. No special network positioning beyond connectivity to the Devolutions Server web interface is required (AV:N, AC:L). Exploitation is limited by the need for a valid authenticated session with entry edit rights; unauthenticated or unprivileged users cannot trigger this flaw. There is no user interaction required beyond the attacker's own actions. |
| Impact | The CVSS base score of 5.3 (Medium) with vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N presents a notable inconsistency with the vulnerability description: PR:N implies no authentication is required, yet the description explicitly states the attacker must be 'an authenticated user with entry edit privileges.' This conflict should be verified with the Devolutions vendor advisory at https://devolutions.net/security/advisories/DEVO-2026-0014/ before relying on the CVSS vector for access-control decisions. The realistic attack surface is therefore narrower than PR:N implies - exploitation requires an insider or compromised account with at least entry edit privileges. Impact is limited to integrity (I:L) with no confidentiality or availability consequence, reducing overall urgency. EPSS data was not provided; given the authenticated requirement and bounded impact, real-world exploitation probability is likely low. No KEV listing and no known POC further support treating this as a medium-priority issue, particularly relevant to organizations with untrusted internal users or contractor accounts in Devolutions Server deployments. |
| Exploit ScenarioDerived | An authenticated internal user or contractor who holds entry edit privileges in Devolutions Server sends a crafted API or UI request to the asset modification endpoint, omitting or bypassing the secondary permission check. The server's permission validation component fails to enforce the additional asset-modification gate, allowing the write operation to succeed. The attacker can alter asset metadata or configuration data they are not authorized to change, potentially manipulating privileged account records stored within the PAM platform. |
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Alert meAnalysisAIv1 – Jun 02, 2026
Improper access control in Devolutions Server 2026.1.19 and earlier allows an authenticated user holding entry edit privileges to modify asset information beyond their authorized scope, bypassing the permission validation layer. The flaw resides in the permission validation component and enables privilege overreach within the platform's access control model - an authenticated low-privilege user can alter data they should have no write access to. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.
RemediationAI
Upgrade Devolutions Server beyond version 2026.1.19 per the vendor advisory at https://devolutions.net/security/advisories/DEVO-2026-0014/. An exact patched version number was not provided in the available data - consult the Devolutions advisory directly to confirm the specific release that resolves CVE-2026-9590 before upgrading. As a compensating control, organizations should audit and minimize the number of accounts granted 'entry edit' privileges to reduce the exposed attack surface, and review audit logs for any unexpected modifications to asset information that may indicate prior exploitation. Restricting the 'entry edit' role to only fully trusted users limits blast radius while a patched version is deployed. No significant side effects from the privilege scoping workaround are anticipated beyond operational overhead.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Devolutions Server is a privileged access management (PAM) and credential vault platform. The vulnerability is classified under CWE-284 (Improper Access Control), indicating that the permission validation component fails to enforce the full set of required permissions before allowing a write operation on asset information. The flaw lies in the separation between 'entry edit' privileges and the distinct 'asset modification' permission - the system incorrectly conflates or short-circuits these checks, allowing a user with the former to perform actions gated behind the latter. Affected product is identified via CPE cpe:2.3:a:devolutions:server:*:*:*:*:*:*:*:*, covering all versions up to and including 2026.1.19. The tag 'Authentication Bypass' refers to a bypass of the secondary permission gate, not of authentication itself.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Primary rating from Vendor (DEVOLUTIONS) · only source for this CVE.
CVSS VectorVendor: DEVOLUTIONS
Lifecycle Timeline
2DescriptionCVE.org
Improper access control in the permission validation component in Devolutions Server 2026.1.19 and earlier allows an authenticated user with entry edit privileges to modify asset information without the required permission.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
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EUVD-2026-33935
GHSA-3xh5-wf4g-97h5
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB