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CVE-2026-61293 – Unauthenticated Remote Takeover – Oracle Hyperion Calculation Manager 11.2.25.0.000

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Summary

CVE-2026-61293 is a high-severity vulnerability in the Security component of Oracle Hyperion Calculation Manager that allows an unauthenticated, remote attacker with network access via HTTP to fully compromise the product. Oracle rates the flaw as "difficult to exploit," but a successful attack results in a complete takeover of Oracle Hyperion Calculation Manager, with high impact to confidentiality, integrity, and availability. The vulnerability was disclosed by Oracle as part of its August 2026 Critical Patch Update.

Technical details

  • Root cause: A flaw in the Security component of Oracle Hyperion Calculation Manager that permits an attacker to bypass authentication controls and act with elevated access.
  • Trigger conditions: No authentication or user interaction is required to exploit the flaw; Oracle notes that exploitation is nonetheless difficult, implying specific, non-trivial preconditions must be met by an attacker.
  • Attack vector: Network-based, reachable over HTTP — meaning the vulnerability is exploitable by any attacker who can send HTTP requests to an exposed Hyperion Calculation Manager instance, without prior credentials.
  • Impact: Successful exploitation results in complete takeover of the Oracle Hyperion Calculation Manager application, with high impact to confidentiality, integrity, and availability (data disclosure, tampering, and denial of service are all possible).

Affected software

  • Oracle Hyperion Calculation Manager, version 11.2.25.0.000

Severity

  • CVSS v3.1 Base Score: 8.1 (High)
  • Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Apply the fix provided by Oracle in the August 2026 Critical Patch Update for Oracle Hyperion Calculation Manager version 11.2.25.0.000. Oracle strongly recommends applying Critical Patch Update fixes as soon as possible.
  • If patching cannot be applied immediately: Restrict and closely monitor network/HTTP access to Hyperion Calculation Manager instances (e.g., limit exposure to trusted internal networks or VPN, and place the application behind a properly configured web application firewall) until the patch can be deployed, since the vulnerability is remotely exploitable over HTTP without authentication.

References

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