CVE-2026-85975 Cleartext transmission in Progress MarkLogic Server Amazon S3 connections

High 7.5 Published Updated

Attackers can intercept data and credentials transmitted over cleartext Amazon S3 connections in 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-2026-85975?

CVE-2026-85975 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 and 11.x releases before 11.3.7 may use cleartext transport for Amazon S3 connections by default. A network-positioned attacker could intercept data or credentials transmitted through an affected connection.

Weakness: CWE-319

Which versions are affected by CVE-2026-85975?

How do I fix CVE-2026-85975?

No fix has been published for CVE-2026-85975 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-85975 being exploited?

There is no known exploitation of CVE-2026-85975 in the wild and no public exploit code.

Sources

Also known as GHSA-26j8-pcp8-mxhw.

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