Logon bypass (trust of attacker-controlled completed-methods list)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-112256
StatePUBLISHED
AssignerOpenText
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-29 16:17:58 UTC
Updated2026-10-29 16:29:56 UTC
DescriptionAcceptance 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.

Risk And Classification

Primary CVSS: v4.0 9.2 CRITICAL from [email protected]

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/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:C/RE:M/U:Red

Problem Types: CWE-349 | CWE-349 CWE-349 Acceptance of extraneous untrusted data with trusted data

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary9.2CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:P/C...
4.0CNACVSS9.2CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:P/A...

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Sub Conf.
High
Sub Integrity
High
Sub Availability
None

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/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:C/RE:M/U:Red

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenText Advanced Authentication Server affected 6.4.0.0 6.4.3.8 semver Not specified
CNA OpenText Advanced Authentication Server affected 6.5.0.0 6.5.0.10 semver Not specified
CNA OpenText Advanced Authentication Server affected 6.6.0.0 6.6.1.0 semver Not specified

References

ReferenceSourceLinkTags
docs.microfocus.com/doc/42/6.4.3.9/security-improvements-6439 [email protected] docs.microfocus.com
docs.microfocus.com/doc/2582/26.3.1/security-improvements-662 [email protected] docs.microfocus.com
docs.microfocus.com/doc/42/26.3.1/security-improvements-662 [email protected] docs.microfocus.com
docs.microfocus.com/doc/42/6.5.0.11/security-improvements-65011 [email protected] docs.microfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: JAN FISHER (en)

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