CVE-2026-9190

Published: Aug 5, 2026Modified: Sep 3, 2026

9.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitability: 3.9 / Impact: 5.2

Source: security@progress.com (Secondary)

Description

An HTTP request smuggling vulnerability in the HTTP App Server of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows a remote attacker to bypass authentication and authorization checks, hijack a legitimate user's session, or capture credentials. The vulnerability occurs when a crafted HTTP request containing both Content-Length and Transfer-Encoding headers causes a reverse proxy and MarkLogic Server to interpret request boundaries differently.

Affected (2)

Products: Progress: Marklogic Server

1 product

Marklogic Server

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Progress Marklogic Server	Before 11.3.6
Progress Marklogic Server	From 12.0.0 to 12.0.3

Related CWEs

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

References (1)

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

Source: security@progress.com

Vendor Advisory

Timeline

No history available yet.