Progress MarkLogic Server: Improper privilege management in REST extensions
Summary
Progress MarkLogic Server 11.x before 11.3.7 and 12.x before 12.1.0 contain an authorization flaw (CWE-269). A remote attacker who already holds administrative privileges could access authentication material of higher-privileged users and potentially gain unauthorized administrative access. The attack requires prior admin rights, so this is a privilege escalation step rather than an initial entry point. The vendor bulletin describes a different issue under this CVE ID, so the exact description must be verified before use in client reports.
Affected
- MarkLogic Server 11.0.0 to before 11.3.7
- MarkLogic Server 12.0.0 to before 12.1.0
- Releases 10.x and earlier: Unknown (not covered by the bulletin per a third-party source; confirm with Progress)
Fixed in
- MarkLogic Server 11.3.7
- MarkLogic Server 12.1.0
- No intermediate builds are confirmed as fixed.
Workaround
Unknown.
Exploitation
- No evidence of exploitation in the wild found.
- Not listed in the CISA KEV catalog.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
- No public proof-of-concept found (absence is not proof).
- This status is provisional.
Our recommendation
- Upgrade to MarkLogic Server 11.3.7 or 12.1.0, ideally together with the other fixes in the October 2026 bulletin in one maintenance window.
- Restrict who holds administrative roles and review delegated database administrator accounts.
- Ensure the administrative and REST interfaces are not reachable from the internet.
- Monitor administrative activity and review logs for unusual access.
- Verify the vendor bulletin for the correct description before reporting.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Progress vendor bulletin (October 2026) community.progress.com
- Strix CVE record CVE-2026-85950 www.strix.ai
- Rapid7 via Vulners CVE-2026-85950 vulners.com
- Cybersecurity News: Progress MarkLogic flaws cybersecuritynews.com
- SecurityOnline: Critical MarkLogic Server vulnerabilities securityonline.info
- GBHackers: Critical Progress MarkLogic Server vulnerabilities gbhackers.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 1 Nov 2026, 12:37.
Original description (NVD)
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain an authorization flaw that could allow a remote attacker with administrative privileges to access authentication material associated with higher-privileged users, potentially resulting in unauthorized administrative access.
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.
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