CVE-2026-91650: essbase — Fix

Description

Vulnerability in Oracle Essbase (component: Java Based Agent). The supported version that is affected is 21.8.3.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Essbase. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Essbase accessible data. CVSS 3.1 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

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CVSS v3.1 Score

3.7

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0028

Probability of exploitation

0.19%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Affected Products

Vendor	Product	Versions
oracle	essbase	All

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2026-91650? +

Vulnerability in Oracle Essbase (component: Java Based Agent). The supported version that is affected is 21.8.3.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Essbase. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Essbase accessible data. CVSS 3.1 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N). It has a CVSS v3.1 base score of 3.7 (LOW).

How severe is CVE-2026-91650? +

CVE-2026-91650 has a CVSS v3.1 score of 3.7 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0028, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-91650? +

CVE-2026-91650 affects products from oracle, specifically: essbase. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-91650? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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