CVE-2026-85973 Cleartext transmission in Progress MarkLogic Server cluster join operations
A network-positioned attacker can intercept or modify cleartext cluster-management communications in Progress MarkLogic Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85973?
CVE-2026-85973 is a high-severity vulnerability in Progress Software Corporation MarkLogic Server, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-319
Which versions are affected by CVE-2026-85973?
How do I fix CVE-2026-85973?
No fix has been published for CVE-2026-85973 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-85973 being exploited?
There is no known exploitation of CVE-2026-85973 in the wild and no public exploit code.
Sources
Also known as GHSA-qfrq-cw8g-3w8m.