CVE-2026-112256：OpenText Advanced Authentication Server 授權繞過漏洞
CVE-2026-112256 - Logon bypass (trust of attacker-controlled completed-methods list)
OpenText Advanced Authentication Server 受 CVE-2026-112256 漏洞影響，允許未授權使用者繞過 ACL 進行功能存取。
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.
Impact
Affected Products
The following products are affected by CVE-2026-112256
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
| ID | Vendor | Product | Action |
|---|---|---|---|
| 1 | Opentext | advanced_authentication_server |
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | CRITICAL | f81092c5-7f14-476d-80dc-24857f90be84 |
Update OpenText Advanced Authentication Server to a patched version to address access control bypass.
- Update to a version addressing the vulnerability.
- Apply vendor-provided security patches.
- Verify access control configurations.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-112256 vulnerability anywhere in the article.
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.