EUVD-2026-70252
GHSA-frh3-mpfw-wxxq
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Remote unauthenticated (AV:N/PR:N) but 'specific conditions' warrants AC:H; account takeover of a secrets vault gives C:H/I:H, while availability is not directly impacted (A:N).
Primary rating from Vendor (Delinea).
CVSS VectorVendor: Delinea
Lifecycle Timeline
2DescriptionCVE.org
Under specific conditions, an attacker can register an attacker-controlled FIDO2 credential against a target account and then authenticate as that user. This issue affects on-premises deployments only.
AnalysisAI
Authentication bypass in on-premises Delinea Secret Server allows an attacker to register an attacker-controlled FIDO2 credential against a victim's account and subsequently log in as that user (CWE-290, spoofing). Because Secret Server is a privileged-access-management vault, a successful bypass yields access to whatever secrets and privileges the impersonated account holds. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation targets the on-premises deployment only - Delinea cloud/SaaS is out of scope, which is the primary limiting factor. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor CVSS vector (AV:N/AC:L/PR:N/UI:N, 9.8) portrays a fully remote, unauthenticated, trivial attack, but the description's phrase 'under specific conditions' directly conflicts with AC:L and PR:N - some precondition (likely a state involving the target account's enrollment or an existing foothold/knowledge) is required, which argues for AC:H and knocks real-world exploitability below the headline score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the fixed Delinea Secret Server on-prem build referenced in the vendor security advisory (https://delinea.com/security-advisories) - no exact fixed version was provided in the input data, so obtain the precise patched build from Delinea and upgrade. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all on-premises Delinea Secret Server deployments to document which versions are deployed and identify all active FIDO2-configured accounts. …
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Same weakness CWE-290 – Authentication Bypass by Spoofing
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today