Delinea Secret Server: Incorrect authorization in JWT processing
Summary
Delinea Secret Server versions earlier than 12.3.1 are affected. Under certain conditions, a user can submit an unsigned JWT and receive cloudadmin permissions in response. This allows privilege escalation to administrative control over stored privileged credentials. The CVSS 4.0 score is 8.7 (High), and the vector requires high privileges and high attack complexity.
Affected
- Delinea Secret Server earlier than 12.3.1 (CVE record)
- Third-party tables list versions up to and including 12.2.7 (derived from the fix version, not confirmed by Delinea)
- Unknown whether Secret Server Cloud is affected
Fixed in
- Upgrade to Secret Server 12.3.1
- Unknown whether hotfixes exist for older branches
Workaround
- Unknown. No vendor-published workaround found.
- Restrict network access to the Secret Server web interface to management networks as an interim measure.
Exploitation
- Not known to be exploited; not listed in CISA KEV.
- No public proof of concept found.
- The CVE was published only recently, so this status is not strong evidence.
Our recommendation
- Check whether any on-prem Secret Server instance is reachable from the internet or broad networks and prioritise it.
- Confirm the installed version and upgrade to 12.3.1 after testing.
- Review logs for unexpected cloudadmin or privileged account activity.
- Monitor the Delinea security advisories page for the official advisory text.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Delinea Security Advisories delinea.com
- CVE record (CVEProject cvelistV5 release) github.com
- VulDB CVE-2026-115830 vuldb.com
- Strix CVE-2026-115830 www.strix.ai
- OffSeq Radar CVE-2026-115830 radar.offseq.com
- Vulners PT-2026-115830 vulners.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 23:21.
Original description (NVD)
In Secret Server versions earlier than 12.3.1, a user under certain conditions could submit an unsigned JWT and receive cloudadmin permissions in response.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
Affected? We can help.
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