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CVE-2026-83269 – Unauthenticated Remote Takeover (RCE-class) – Oracle BI Publisher 8.2.0.0.0, 12.2.1

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Summary

CVE-2026-83269 is a critical vulnerability in the BI Platform Security component of Oracle BI Publisher (part of the Oracle Analytics product suite). It allows a completely unauthenticated attacker with only network access via HTTP to fully compromise the Oracle BI Publisher server, potentially leading to a complete takeover of the affected system. Oracle rates this issue at the maximum practical severity level, CVSS 9.8 (Critical).

Technical details

  • Root cause: A flaw in the BI Platform Security component of Oracle BI Publisher that fails to properly enforce access/authentication controls, permitting an attacker to bypass required checks.
  • Trigger conditions: No authentication or prior privileges are required, and no user interaction is needed to exploit the flaw.
  • Attack vector: Exploitable remotely over the network via HTTP, meaning any internet- or intranet-exposed Oracle BI Publisher instance is a potential target.
  • Impact: Successful exploitation can result in high impact to confidentiality, integrity, and availability — Oracle describes the outcome as compromise/takeover of Oracle BI Publisher, which can expose or allow modification of sensitive business intelligence data and reporting infrastructure.

Affected software

  • Oracle BI Publisher (Oracle Analytics) version 8.2.0.0.0
  • Oracle BI Publisher (Oracle Analytics) version 12.2.1.4.0
  • Oracle BI Publisher (Oracle Analytics) version 26.01.0.0.0

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Apply the Oracle Critical Patch Update (CPU) that addresses CVE-2026-83269 for your specific Oracle BI Publisher / Oracle Analytics release. Consult Oracle’s official Security Alert advisory for the exact patch identifiers matching your installed version (8.2.0.0.0, 12.2.1.4.0, or 26.01.0.0.0).
  • If immediate patching is not possible: Restrict network access to Oracle BI Publisher so that it is not reachable from untrusted networks or the public internet; place the application behind a firewall/VPN and limit HTTP access to trusted, authenticated management networks only until the patch can be applied.
  • General: Monitor Oracle BI Publisher instances for unusual or unauthenticated HTTP requests, and prioritize patching for any internet-facing deployments given the unauthenticated, network-exploitable nature of this flaw.

References

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