CVE-2026-19117: critical vulnerability in Delinea Secret Server (On-Prem)
Delinea Secret Server FIDO2 credential registration authentication bypass vulnerability
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Delinea · Secret Server (On-Prem)Related CVEs — Delinea Secret Server (On-Prem)
In the same product, most dangerous first.
CVE-2026-115829CRITICALSecret Server Authentication Bypass via Unauthenticated Pin Code Reset and Brute ForceEPSS 0.5%CVE-2026-15639CRITICALReflected Cross-Site ScriptingEPSS 0.4%CVE-2026-15640CRITICALAuthentication Bypass via SAML Response ManipulationEPSS 0.3%CVE-2026-115828CRITICALSecret Server device validation errorEPSS 0.3%CVE-2026-115830HIGHSecret Server JWT issuance errorEPSS 0.3%CVE-2026-15638CRITICALCryptographic Padding OracleEPSS 0.2%
References
https://delinea.com/security-advisories