CVE-2026-61295 Overview
CVE-2026-61295 is a high-severity access control weakness in the Content Server component of Oracle WebCenter Content, part of Oracle Fusion Middleware. Supported versions 12.2.1.4.0 and 14.1.2.0.0 are affected. The flaw allows an unauthenticated attacker with logon access to the infrastructure where Oracle WebCenter Content executes to compromise the product. Because the vulnerability produces a scope change, successful exploitation can significantly impact additional products beyond WebCenter Content itself. The weakness is classified under Improper Access Control [CWE-284].
Critical Impact
Successful exploitation results in unauthorized access to critical data or complete access to all Oracle WebCenter Content accessible data, with impact extending to adjacent products via scope change.
Affected Products
- Oracle WebCenter Content 12.2.1.4.0
- Oracle WebCenter Content 14.1.2.0.0
- Oracle Fusion Middleware Content Server component
Discovery Timeline
- 2026-08-18 - CVE-2026-61295 published to NVD
- 2026-08-20 - Last updated in NVD database
- 2026-08-20 - EPSS probability recorded at 0.162%
Technical Details for CVE-2026-61295
Vulnerability Analysis
The vulnerability resides in the Content Server component of Oracle WebCenter Content. Improper access control [CWE-284] allows an attacker who can log on to the underlying infrastructure to bypass authorization checks enforced by the application. The flaw does not require authentication to the WebCenter Content application itself, only local access to the host environment where the product executes. Oracle's advisory notes a scope change, meaning that the compromised component can affect resources managed by a different security authority. This significantly broadens the blast radius beyond the WebCenter Content boundary.
Root Cause
The root cause is improper enforcement of access control within the Content Server. The component fails to validate the security context of local requests against the resources they attempt to read. As a result, attackers with a foothold on the infrastructure can invoke functionality or read content that access policy should restrict. The Confidentiality impact is High while Integrity and Availability are unaffected, indicating the flaw exposes stored data rather than allowing modification.
Attack Vector
Exploitation requires local access to the system where Oracle WebCenter Content runs. An attacker who has already gained a shell, service account, or interactive session on the host can trigger the vulnerable code path without prior authentication to WebCenter Content. Oracle characterizes exploitation as easy, with no user interaction required. The scope-changed outcome permits the attacker to reach data across product boundaries within the Fusion Middleware deployment. See the Oracle Security Alert for vendor-supplied technical detail.
Detection Methods for CVE-2026-61295
Indicators of Compromise
- Unexpected local process activity on WebCenter Content hosts accessing Content Server data directories or configuration files.
- Access to WebCenter Content repositories or metadata by local accounts that do not correspond to the WebCenter Content service identity.
- Anomalous read operations against Content Server storage volumes outside of scheduled batch or user activity.
Detection Strategies
- Monitor host-level file access telemetry for reads against Content Server data paths originating from non-service processes.
- Correlate local logon events on WebCenter Content servers with subsequent access to Fusion Middleware content stores.
- Baseline normal Content Server process behavior and alert on deviations, particularly cross-product data access consistent with the scope change described in the advisory.
Monitoring Recommendations
- Enable auditing for all interactive and service logons on hosts running Oracle WebCenter Content 12.2.1.4.0 and 14.1.2.0.0.
- Forward WebCenter Content and operating system audit logs to a centralized platform for retention and correlation.
- Track privileged account usage on Fusion Middleware infrastructure and alert on out-of-hours or non-standard access patterns.
How to Mitigate CVE-2026-61295
Immediate Actions Required
- Apply the fixes published in the Oracle Security Alert for Oracle WebCenter Content 12.2.1.4.0 and 14.1.2.0.0.
- Restrict local logon rights on WebCenter Content hosts to a minimal set of administrative accounts.
- Review recent local logon and file access telemetry on affected hosts for signs of exploitation prior to patching.
Patch Information
Oracle addressed CVE-2026-61295 in the security alert dated August 2026. Administrators should reference the Oracle Security Alert for the specific patch bundles applicable to Oracle Fusion Middleware and apply them following Oracle's standard patch deployment guidance.
Workarounds
- Enforce strict operating system access controls to prevent unauthorized local logon on WebCenter Content servers.
- Segment WebCenter Content infrastructure from general-purpose hosts and jump servers where feasible.
- Require multi-factor authentication for administrative access to Fusion Middleware hosts to reduce the likelihood of an attacker obtaining local logon.
# Configuration example
# Review local logon rights on the WebCenter Content host and remove non-essential accounts.
# Linux example: audit users permitted interactive logon
getent passwd | awk -F: '$7 !~ /nologin|false/ {print $1, $7}'
# Restrict file access to the Content Server data directory to the service account only
chown -R oracle:oinstall /u01/app/oracle/wcc
chmod -R o-rwx /u01/app/oracle/wcc
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
