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CVE-2026-82994 – Unauthenticated Remote Compromise via LDAP – Oracle Platform Security for Java 12.2

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Summary

CVE-2026-82994 is a critical, easily exploitable vulnerability in Oracle Platform Security for Java (OPSS), a component of Oracle Fusion Middleware, affecting the "Centralized Thirdparty Jars" component. The flaw allows an unauthenticated attacker with network access via the LDAP protocol to compromise the system, potentially achieving complete takeover. Oracle rates the issue 9.8 (CRITICAL) on CVSS v3.1.

Technical details

  • Root cause: A weakness in how Oracle Platform Security for Java’s Centralized Thirdparty Jars component handles LDAP-based interactions, as documented in Oracle’s own CVE submission.
  • Trigger conditions: No authentication or user interaction is required; the attacker only needs network-level access to the LDAP interface exposed by the affected OPSS deployment.
  • Attack vector: Network (AV:N) — exploitable remotely over the network with low attack complexity (AC:L) and no privileges required (PR:N).
  • Impact: Successful exploitation results in complete compromise of confidentiality, integrity, and availability of Oracle Platform Security for Java and the data/services it protects.

Affected software

  • Oracle Platform Security for Java (Oracle Fusion Middleware) — version 12.2.1.4.0
  • Oracle Platform Security for Java (Oracle Fusion Middleware) — version 14.1.2.0.0

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 fix for CVE-2026-82994 published by Oracle in its September 2026 Security Alert (cspusep2026) for all deployments running Oracle Platform Security for Java 12.2.1.4.0 or 14.1.2.0.0.
  • If immediate patching is not possible: Restrict and segment network access to the LDAP interface used by Oracle Platform Security for Java so that it is not reachable from untrusted networks, and monitor LDAP traffic to affected Oracle Fusion Middleware hosts for anomalous or unauthenticated connection attempts until the patch can be applied.

References

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