CVE-2026-9190CWE-444

CVE-2026-9190

Critical · published August 5, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
54.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00737 · 54.0th percentile
Weakness
CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Published
2026-08-05T20:17Z
Affected products (2)
ProductVersionsFixed in
progress/marklogic_server< 11.3.611.3.6
progress/marklogic_server≥ 12.0.0, < 12.0.312.0.3
References (1)
https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-August-2026 · [email protected]
EPSS history
Timeline
  • 05 AUG 15:34Z
    HTTP request smuggling in Progress MarkLogic Server
    cvelistv5