Unauthorized Access Vulnerability in Oracle WebLogic Server
CVE-2026-91502

7.3HIGH

Key Information:

Vendor

Oracle
Status
Oracle Weblogic Server
Vendor
CVE Published:
20 October 2026

What is CVE-2026-91502?

The vulnerability in Oracle WebLogic Server allows unauthenticated attackers with network access via TLS to exploit the system. Successful exploitation can lead to unauthorized update, insertion, or deletion of data. Furthermore, attackers may gain unauthorized read access to specific data and potentially initiate a partial denial of service, compromising the server's operational integrity. This situation poses significant risks, necessitating immediate action for affected users.

Affected Version(s)

Oracle WebLogic Server 12.2.1.4.0

Oracle WebLogic Server 14.1.1.0.0

Oracle WebLogic Server 14.1.2.0.0

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.