Unauthenticated Data Exposure in Oracle Essbase Java Based Agent
CVE-2026-91648

5.3MEDIUM

Key Information:

Vendor

Oracle
Status
Oracle Essbase
Vendor
CVE Published:
20 October 2026

What is CVE-2026-91648?

A vulnerability exists in the Java Based Agent of Oracle Essbase, allowing an unauthenticated attacker with network access via TCP to gain unauthorized read access to sensitive data. This flaw affects version 21.8.3.0.0, highlighting the importance of securing network environments to prevent exploitation and unauthorized data exposure.

Affected Version(s)

Oracle Essbase 21.8.3.0.0

References

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

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.