CVE-2026-112256

Critical

Description

Acceptance of extraneous untrusted data with trusted data vulnerability in OpenText Advanced Authentication Server allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Advanced Authentication Server: from 6.4.0.0 through 6.4.3.8, from 6.5.0.0 through 6.5.0.10, and from 6.6.0.0 through 6.6.1.0.

SeverityCritical

CVSS9.2

Exploit probability—

ProductAdvanced Authentication Server

PublishedOct 29, 2026

First seenNov 4, 2026

Weakness typeCWE-349CWE-349

How to fix

Vendor advisories

docs.microfocus.com/doc/42/26.3.1/security-improvements-662
docs.microfocus.com/doc/2582/26.3.1/security-improvements-662

Affected products

Product	Affected versions	Fixed in
OpenText Advanced Authentication Server	6.4.0.0 ≤ v ≤ 6.4.3.8, 6.5.0.0 ≤ v ≤ 6.5.0.10, 6.6.0.0 ≤ v ≤ 6.6.1.0	—

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