Summary
CVE-2026-70669 is a critical vulnerability in Oracle Reports Developer, part of Oracle Fusion Middleware, affecting the product’s Security and Authentication component. It allows an unauthenticated attacker with network access via HTTP to compromise Oracle Reports Developer and achieve complete takeover of the affected system. The flaw carries a CVSS v3.1 base score of 9.8 (Critical).
Technical details
- Root cause lies in the Security and Authentication component of Oracle Fusion Middleware as implemented in Oracle Reports Developer.
- No authentication or user interaction is required to exploit the flaw.
- The vulnerability is remotely exploitable over HTTP, making it reachable by any attacker with network access to the affected service.
- Oracle describes the vulnerability as "easily exploitable."
- Successful exploitation results in complete compromise of the host running Oracle Reports Developer, with high impact to confidentiality, integrity, and availability.
Affected software
- Oracle Reports Developer version 14.1.2.0.0 (Oracle Fusion Middleware)
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 fix provided in Oracle’s August 2026 Critical Security Patch Update (CSPU), which addresses CVE-2026-70669 for Oracle Reports Developer 14.1.2.0.0. Organizations should apply the patch through their Oracle support channels as soon as possible.
- If immediate patching is not possible: Restrict network access to Oracle Reports Developer / Reports Server endpoints (e.g., via firewall rules or network segmentation) so they are not reachable from untrusted networks, and monitor exposed instances closely until the patch can be applied.

