CVE-2026-46839
A critical security flaw exists in the core component of Oracle REST Data Services. This vulnerability allows an attacker with low-level access to take control of the service.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Users running Oracle REST Data Services versions 24.2.0 through 26.1.0.
Real-world impact
An attacker could gain full control over Oracle REST Data Services, potentially allowing them to access sensitive data, modify information, or disrupt the service entirely. Because the vulnerability allows for a scope change, the impact could extend to other connected systems.
Why this severity
The score of 9.9 is critical because the vulnerability is easy to exploit over a network and allows an attacker to completely compromise the confidentiality, integrity, and availability of the system.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- May 28, 2026 · May 28, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 21, 2026 · 14d agoAdvisory updatedThe NVD record was last revised.
How it’s attacked
References & advisories
- oracle.com/security-alerts/cspumay2026…vendor advisory