Vulnerability · Published Sep 2, 2026 · Assigned by Delinea
CVE-2026-19117Delinea Secret Server FIDO2 credential registration authentication bypass vulnerability
Critical 9.8
In plain English
A critical-severity authentication bypass by spoofing in Secret Server (On-Prem) from Delinea. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 58.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Delinea | Secret Server (On-Prem) | 10.6.0 – through 11.7.6111.8.0 – through 11.8.111.9.0 – through 11.9.4712.0.0 – through 12.0.2212.1.0 – through 12.1.2 |
Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://delinea.com/security-advisories vendor-advisory