CVE-2026-61083: Oracle Performance Management Auth Bypass

CVE-2026-61083 Overview

CVE-2026-61083 affects the Oracle Performance Management product within Oracle E-Business Suite, specifically the Appraisals component. Supported versions 12.2.3 through 12.2.15 are affected. A low-privileged attacker with network access via HTTP can exploit the flaw to gain unauthorized update, insert, or delete access to Performance Management data. The attacker can also read a subset of Performance Management data. Exploitation requires authentication but no user interaction.

Critical Impact
Authenticated remote attackers can modify appraisal records and read sensitive HR performance data over HTTP, undermining the integrity of employee performance workflows.

Affected Products

Oracle E-Business Suite Performance Management 12.2.3
Oracle E-Business Suite Performance Management versions 12.2.4 through 12.2.14
Oracle E-Business Suite Performance Management 12.2.15

Discovery Timeline

2026-07-21 - CVE-2026-61083 published to NVD as part of the Oracle July 2026 Critical Patch Update
2026-07-21 - Last updated in NVD database

Technical Details for CVE-2026-61083

Vulnerability Analysis

The vulnerability resides in the Appraisals component of Oracle Performance Management, a module of Oracle E-Business Suite used to manage employee performance reviews. An authenticated user with low privileges can send crafted HTTP requests to compromise the module. Successful exploitation results in unauthorized create, update, and delete operations against a subset of Performance Management data, plus unauthorized read access to additional records.

Oracle's advisory classifies the issue as easily exploitable, meaning no specialized conditions or user interaction are required beyond valid low-privilege credentials. The scope remains unchanged, so impact is limited to the vulnerable component. Availability is not affected, but integrity and confidentiality of appraisal records — including performance ratings, comments, and workflow status — are at risk.

EPSS data as of 2026-07-23 places the exploitation probability at 0.24% (15.2 percentile), indicating no observed exploitation attempts at the time of publication.

Root Cause

Oracle has not disclosed the specific weakness class or CWE identifier. Based on the impact profile — low-privileged network attacker altering and reading data through HTTP — the root cause is consistent with a broken access control or authorization bypass condition in the Appraisals workflow. The component fails to correctly enforce object-level authorization on requests that manipulate appraisal records.

Attack Vector

The attacker requires network reachability to the Oracle E-Business Suite HTTP endpoint and a valid low-privileged application account. The adversary submits crafted requests to the Appraisals interface to trigger unauthorized data operations. No client-side interaction, phishing, or elevated role is required. Attackers with employee-level self-service access could target performance data belonging to other users.

No public proof-of-concept exploit is available. Refer to the Oracle July 2026 Security Alert for vendor technical details.

Detection Methods for CVE-2026-61083

Indicators of Compromise

Unexpected modifications to PER_APPRAISALS or related HR schema tables performed by non-manager accounts.
HTTP requests to Performance Management servlets and JSPs (OA.jsp, RF.jsp) referencing Appraisals functions from user sessions that do not own the target record.
Audit trail entries showing appraisal status transitions initiated by accounts outside the appraisal's participant list.

Detection Strategies

Enable Oracle E-Business Suite Sign-On Audit and Page Access Tracking to record every Performance Management page invocation with the acting user.
Correlate application-tier access logs with database audit records to identify write operations on appraisal tables that lack a matching authorized workflow event.
Baseline typical Appraisals traffic per role and alert on low-privileged users issuing update or delete operations against records they do not own.

Monitoring Recommendations

Forward Oracle HTTP Server (access_log) and application audit logs to a centralized analytics platform for retention and query.
Monitor for anomalous request volumes to /OA_HTML/ endpoints associated with the Performance Management module.
Review database-level FGA (Fine-Grained Auditing) policies on Performance Management schemas for unauthorized DML activity.

How to Mitigate CVE-2026-61083

Immediate Actions Required

Apply the July 2026 Critical Patch Update for Oracle E-Business Suite to all Performance Management deployments running 12.2.3 through 12.2.15.
Inventory accounts with access to the Appraisals responsibility and remove entitlements from users who do not require them.
Audit recent modifications to appraisal records to identify unauthorized changes made prior to patching.

Patch Information

Oracle addressed CVE-2026-61083 in the July 2026 Critical Patch Update. Administrators should download and apply the fixes documented in the Oracle July 2026 Security Alert. Oracle recommends applying Critical Patch Update fixes without delay because the vendor does not provide additional information on unpublished vulnerabilities.

Workarounds

Restrict network reachability of the Oracle E-Business Suite HTTP tier to trusted corporate networks and VPN users until patches are applied.
Temporarily reduce the population assigned to the Performance Management and Appraisals responsibilities to limit the pool of accounts that can reach the vulnerable code path.
Increase database and application auditing on Performance Management schemas so any exploitation attempt against unpatched hosts is recorded for investigation.

bash

# Verify installed Oracle E-Business Suite patch level before and after remediation
# Run from the application tier as the applmgr user
sqlplus apps/<password> <<EOF
SELECT bug_number, last_update_date
  FROM ad_bugs
 WHERE bug_number IN ('<July 2026 CPU patch numbers from Oracle advisory>')
 ORDER BY last_update_date DESC;
EXIT;
EOF