Vulnerability · Published Oct 12, 2026 · Assigned by ProgressSoftware
CVE-2026-85958Improper OAuth token validation in Progress MarkLogic Server
High 7.5
In plain English
A high-severity improper authentication in MarkLogic Server from Progress Software Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 69.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Progress Software Corporation | MarkLogic Server | 11.0.0 – before 11.3.712.0.0 – before 12.1.0 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N