Information disclosure in Oracle Essbase Java Based Agent
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
Oracle Essbase supported version 21.8.3.0.0 is affected in its Java Based Agent component. The flaw is an exposure of sensitive information to an unauthorized actor (CWE-200). An unauthenticated remote attacker with network access over HTTP can reach Oracle Essbase, and a successful attack gives unauthorized read access to a subset of the data Oracle Essbase can access.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Vulnerability in Oracle Essbase (component: Java Based Agent). The supported version that is affected is 21.8.3.0.0. Easily exploitable 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 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Oracle Essbase.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Oracle Essbase — oracle.com/security-alerts/cpuoct2026.html
36 records Highest priority Priority MEDIUM 7 MEDIUM, 29 LOW
Other records, highest priority first
- TI-2026-77657 Missing authentication in Oracle Essbase allows remote takeoverPriority MEDIUM 49
- TI-2026-77636 Improper access control in Oracle Essbase allows remote compromisePriority MEDIUM 45
- TI-2026-77655 Improper access control in Oracle Essbase allows takeoverPriority MEDIUM 43
Timeline
- 2026-10-21 Threatist record created from CVE-2026-91643
- 2026-10-21 Alias added: GHSA-xwff-56r5-xcvj
- 2026-10-27 Weakness changed · CISA ADP
- 2026-10-27 CISA SSVC decision points changed
References
Advisory 1
More Oracle Essbase vulnerabilities
- TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
- TI-2021-05762 Use after free in https://github.com/curl/curl CVSS 3.1HIGH 8.1
- TI-2020-06702 Uncontrolled recursion in https://github.com/curl/curl CVSS 3.1HIGH 7.5
- TI-2021-02413 NULL pointer deref in signature_algorithms processing CVSS 3.1MEDIUM 5.9
- TI-2021-05758 Exposure of resource to wrong sphere in https://github.com/curl/curl CVSS 3.1MEDIUM 5.3
- TI-2021-05737 Information disclosure in https://github.com/curl/curl CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-91643 · CVE Program
- CVE-2026-91643 · NVD
- FIRST EPSS
- GHSA-xwff-56r5-xcvj · GitHub Advisory Database · CC BY 4.0
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