HTTP response splitting in MarkLogic - CVE-2026-85976
Published: October 12, 2026
Vulnerability identifier: #VU154149
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-85976
CWE-ID: CWE-113
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to split HTTP responses and cause unintended client-side response handling.
The vulnerability exists due to improper neutralization of CRLF sequences in HTTP headers in the Query Console file-exploration endpoint when processing input used in responses. A remote user can supply insufficiently sanitized input to split HTTP responses and cause unintended client-side response handling.
Affected software
MarkLogic
How to mitigate CVE-2026-85976
Install security update from vendor's website.
MarkLogic - addressed in versions 11.3.7, 12.1