CVE-2026-9190

Summary

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 Software

Weaknesses

• CWE-444: CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Workarounds

Do not expose MarkLogic HTTP App Servers directly to untrusted networks. Configure a reverse proxy or web application firewall to reject requests that contain both Content-Length and Transfer-Encoding headers, and restrict access to trusted networks until the update can be applied.

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: total

References

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

• ←Previous
• Next→