What’s Vulnerable › Vulnerabilities

CVE-2026-85973: Cleartext transmission in Progress MarkLogic Server cluster join operations

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-15
• Weakness: CWE-319

Description

Progress MarkLogic Server 12.x releases before 12.1.0 may use cleartext transport for certain cluster-management communications. A network-positioned attacker could intercept or modify information transmitted through an affected connection.

Affected products

• Progress Software Corporation MarkLogic Server: from 12.0.0 before 12.1.0 — fixed in 12.1.0

How to fix

Upgrade to a fixed version: Progress Software Corporation MarkLogic Server 12.1.0. Check the vendor advisory for mitigations.

References

• https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026

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