CVE-2026-35316 Overview
CVE-2026-35316 is a critical vulnerability in the Oracle WebCenter Content component of Oracle Fusion Middleware. The flaw resides in the Content Server component and affects supported versions 12.2.1.4.0 and 14.1.2.0.0. A low-privileged attacker with network access via HTTP can exploit this vulnerability with low complexity. Successful exploitation results in complete takeover of Oracle WebCenter Content. The vulnerability carries a scope change, meaning attacks can significantly impact additional products beyond WebCenter Content itself. Oracle disclosed the issue in the June 2026 Critical Security Patch Update.
Critical Impact
Authenticated attackers can achieve full compromise of Oracle WebCenter Content with cross-component impact affecting confidentiality, integrity, and availability.
Affected Products
- Oracle WebCenter Content 12.2.1.4.0
- Oracle WebCenter Content 14.1.2.0.0
- Oracle Fusion Middleware deployments using affected Content Server versions
Discovery Timeline
- 2026-06-17 - CVE-2026-35316 published to NVD
- 2026-06-17 - Last updated in NVD database
- June 2026 - Oracle releases security patch in CSPU June 2026
Technical Details for CVE-2026-35316
Vulnerability Analysis
The vulnerability exists in the Content Server component of Oracle WebCenter Content. It is classified under [CWE-284] Improper Access Control. The flaw allows a low-privileged authenticated user to escalate access and take over the WebCenter Content instance. Oracle has not disclosed the precise technical mechanism in the public advisory.
The scope change indicator signals that exploitation crosses trust boundaries. Compromise of WebCenter Content can propagate to additional integrated Fusion Middleware components. Attackers gain control over content management functions, document repositories, and any downstream services consuming the platform.
Root Cause
The root cause maps to improper access control [CWE-284] in the Content Server component. Authorization checks fail to adequately restrict actions available to low-privileged users. This permits operations that should require administrative privileges. Oracle has not published source-level details.
Attack Vector
The attack vector is network-based over HTTP. An attacker requires valid low-privileged credentials but no user interaction. Attack complexity is low, meaning no specialized conditions are required. The HTTP-accessible Content Server interface is the entry point. Internet-exposed WebCenter Content instances face the highest exposure.
No public proof-of-concept code is currently available. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The EPSS score stands at 0.402% as of the June 2026 publication. Refer to the Oracle Security Alert CSPU June 2026 for vendor guidance.
Detection Methods for CVE-2026-35316
Indicators of Compromise
- Unexpected administrative actions performed by low-privileged WebCenter Content accounts
- Anomalous HTTP requests targeting Content Server endpoints from authenticated sessions
- New or modified content items, workflows, or configuration changes outside change windows
- Outbound connections from WebCenter Content servers to untrusted destinations following scope-changing activity
Detection Strategies
- Audit Oracle WebCenter Content access logs for privilege boundary violations and unusual API calls
- Correlate authentication events with subsequent administrative operations performed by non-admin accounts
- Inspect HTTP request patterns to the Content Server for unexpected parameters or repeated authorization failures preceding successful actions
Monitoring Recommendations
- Enable verbose audit logging on Content Server and forward to a centralized SIEM
- Baseline normal user activity per role and alert on deviations such as bulk content access by standard users
- Monitor child processes and outbound network connections originating from the WebCenter Content host
How to Mitigate CVE-2026-35316
Immediate Actions Required
- Apply the June 2026 Critical Security Patch Update from Oracle to all affected WebCenter Content 12.2.1.4.0 and 14.1.2.0.0 deployments
- Inventory all Oracle Fusion Middleware instances and identify exposed Content Server endpoints
- Restrict network access to WebCenter Content interfaces to trusted management networks where feasible
- Review and reduce the number of accounts holding any level of access to the Content Server
Patch Information
Oracle released the fix in the June 2026 Critical Security Patch Update. Administrators must download and apply the patch referenced in the Oracle Security Alert CSPU June 2026. No vendor-approved configuration workaround substitutes for the patch.
Workarounds
- Place WebCenter Content behind an authenticated reverse proxy or VPN to limit attacker reachability
- Enforce strict role-based access control and remove unused low-privileged accounts
- Apply web application firewall rules to block anomalous HTTP request patterns to Content Server endpoints until patching completes
# Verify installed Oracle WebCenter Content version before and after patching
$ORACLE_HOME/OPatch/opatch lsinventory | grep -i "WebCenter Content"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
