CVE-2026-85958
Improper OAuth token validation in Progress MarkLogic Server
Progress Software Corporation MarkLogic Server
CVSS
7.5HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.29%Chance of exploitation activity in the next 30 days, higher than 20% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain an authentication validation weakness that could allow an attacker to use a token that should not be accepted by the affected server, which could result in unauthorized access.
Text from CVE List
Affected versions 2
- MarkLogic Serveraffected: 11.0.0 before 11.3.7CVE List
- MarkLogic Serveraffected: 12.0.0 before 12.1.0CVE List