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TI-2026-82580 Aliases CVE-2026-112256GHSA-rqjf-xhwg-fh67

Logon bypass in OpenText Advanced Authentication Server

Priority MEDIUM 47CWE-349Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

OpenText 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 is affected. The server accepts untrusted data alongside trusted data (CWE-349), so it trusts a list of completed authentication methods that the attacker controls. An unauthenticated remote attacker can reach functionality that access control lists should restrict, which bypasses logon.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00245 15th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenTextAdvanced Authentication Server6.4.0.0 – 6.4.3.8; 6.5.0.0 – 6.5.0.10; 6.6.0.0 – 6.6.1.0—No fix listedCNA
  • Advanced Authentication Server VendorOpenText Affected 6.4.0.0 – 6.4.3.8; 6.5.0.0 – 6.5.0.10; 6.6.0.0 – 6.6.1.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for OpenText Advanced Authentication Server.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-112256
  2. 2026-10-29 Alias added: GHSA-rqjf-xhwg-fh67
  3. 2026-10-31 Priority changed: MEDIUM → LOW
  4. 2026-11-05 CISA SSVC decision points changed
  5. 2026-11-05 Priority changed: LOW → MEDIUM

References

Other 4

  • TI-2022-22711 An issue was discovered in OpenText Content Suite Platform 22.1 (16.2.19.1803). CVSS 3.1HIGH 8.8
  • TI-2022-22712 A remote OScript execution issue was discovered in OpenText Content Suite Platform 22.1… CVSS 3.1HIGH 8.8
  • TI-2022-22710 An issue was discovered in OpenText Content Suite Platform 22.1 (16.2.19.1803). CVSS 3.1HIGH 8.8
  • TI-2022-22707 An issue was discovered in OpenText Content Suite Platform 22.1 (16.2.19.1803). CVSS 3.1HIGH 8.8
  • TI-2022-22706 An issue was discovered in OpenText Content Suite Platform 22.1 (16.2.19.1803). CVSS 3.1HIGH 8.8
  • TI-2022-22709 An issue was discovered in OpenText Content Suite Platform 22.1 (16.2.19.1803). CVSS 3.1HIGH 7.5
See all 252 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences