PatchTheCVECVE-2026-112256: Acceptance of extraneous untrusted data with trusted data vulnerability in OpenText Advanced Authentication Se
CVE-2026-112256 is a critical-severity flaw (CVSS 9.2) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 this priority
- Critical severity
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 9.2 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | n/a |
| CISA exploited list | No |
| Weakness | CWE-349 |
| Published | 2026-10-29 |
| Last modified | 2026-10-29 |
Last updated 2026-10-29 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Research and news
- VulDB Recent Entries: CVE-2026-112256 | OpenText Advanced Authentication Server up to 6.4.3.8/6.5.0.10/6.6.1.0 privileges management 2026-10-29
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-112256?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-112256 being exploited?
CVE-2026-112256 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-112256 affect?
CVE-2026-112256 affects affected software. Severity is critical (CVSS 9.2). 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
How urgent is CVE-2026-112256?
Priority 37/100. Critical severity; Remotely exploitable, no login, no user action