Java Based Agent Vulnerability in Oracle Essbase
CVE-2026-91662

6.4MEDIUM

Key Information:

Vendor

Oracle
Status
Oracle Essbase
Vendor
CVE Published:
20 October 2026

What is CVE-2026-91662?

A vulnerability exists in Oracle Essbase's Java Based Agent, impacting version 21.8.3.0.0. This flaw presents a low exploitation threshold for attackers with limited access rights to the infrastructure hosting Oracle Essbase. If exploited, it could provide unauthorized access to sensitive data or lead to unauthorized modifications, including updates, inserts, or deletions of data accessible through Oracle Essbase. Although the vulnerability is confined to Oracle Essbase, its ramifications could extend to other associated products, highlighting a significant risk to data confidentiality and integrity.

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:
6.4
Severity:
MEDIUM
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.