Improper Verification of Cryptographic Signature in MarkLogic - CVE-2026-7557
Published: August 6, 2026
Vulnerability identifier: #VU141061
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-7557
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication and impersonate any user.
The vulnerability exists due to improper verification of cryptographic signature in the SAML authentication module when processing a SAML response. A remote attacker can submit a crafted SAML response to bypass authentication and impersonate any user.
Administrator accounts can also be impersonated.
Affected software
MarkLogic
How to mitigate CVE-2026-7557
Install security update from vendor's website.
MarkLogic - addressed in versions 11.3.6, 12.0.3