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.

References

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-113003

https://docs.microfocus.com/doc/42/6.5.0.11/security-improvements-65011

https://docs.microfocus.com/doc/42/6.4.3.9/security-improvements-6439

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

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

Details

Source: Mitre, NVD

Published: 2026-10-29

Updated: 2026-11-05

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Severity: Critical

EPSS

EPSS: 0.00245