CVE ID        : CVE-2026-21962
Severity      : CRITICAL
Published     : 2026-01-20
Category      : Authentication Bypass
CWE           : CWE-284 (Improper Access Control)

- Authentication boundary is improperly enforced
- Crafted HTTP requests bypass access control
+ Direct access to protected backend resources

+ Full unauthorized access to application data
+ Data tampering or deletion
+ Backend system exposure through proxy chain
+ Potential lateral movement across services

+ Apply latest Oracle Critical Patch Update (Jan 2026)

# Reduce exposure
- Restrict proxy endpoints
- Limit external access
- Enforce network segmentation

# Detection & monitoring
- Enable HTTP request inspection
- Log and analyze anomalies
- Deploy WAF protections

+ Unexpected HTTP requests to proxy endpoints
+ Access without authentication tokens
+ Irregular request patterns or headers
+ Sudden spikes in backend responses

Entry Point   : HTTP Request
Attack Type   : Remote
Auth Needed   : No
Skill Level   : Low

[ Attacker ]
      │
      ▼
[ Crafted HTTP Request ]
      │
      ▼
[ Proxy Bypass ]
      │
      ▼
[ Backend Access ]
      │
      ▼
[ Data Compromise ]

- This vulnerability requires immediate attention
- Delayed patching significantly increases risk
+ Treat as actively exploitable in real-world scenarios