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CVE-2026-91909.1CriticalCWE-444

CVE-2026-9190: HTTP request smuggling in Progress MarkLogic Server

Progress Software Corporation · MarkLogic Server

Fixed in 11.3.6 · Affected: Progress Software Corporation MarkLogic Server before 11.3.6 · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.7%probability of exploitation in the next 30 days
55th percentile
050100

Higher than 55% of scored CVEs

9.1CriticalCVSS 3.1
LowCrit.

DescriptionCVE.org

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 products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • Progress Software Corporation · MarkLogic Serverfrom 11.0.0 before 11.3.6; from 12.0.0 before 12.0.3

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Published
August 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-9190 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References