High severity · published Jun 24, 2026
CVE-2026-11877
Missing Authorization Vulnerability in OpenText Access Manager
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
An unauthorized user can modify configuration through API
calls that affects the OpenText Access
Manager. This issue affects Access Manager before 5.1.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AM
Access Manager · OpenText
5.1 through 5.1.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-11877
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-11877
Vendor Advisory
https://portal.microfocus.com/s/article/KM000047450
More from Access Manager
6.1
CVE-2026-11878
Reflected Cross-Site Scripting vulnerability in OpenText Access Manager