CVE-2026-46840
A critical flaw in Oracle REST Data Services allows an unauthenticated attacker to take full control of the service over HTTPS. The vulnerability is easy to exploit and can compromise all data and operations. It affects versions 24.2.0 through 26.1.0.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Oracle REST Data Services 24.2.0 to 26.1.0, used by enterprises that expose data via REST APIs.
Real-world impact
An attacker could gain complete control of the REST service, read, modify, or delete data, and disrupt or deny access to the application.
Why this severity
The CVSS score of 10.0 reflects that the flaw is network‑accessible, requires no authentication, and gives an attacker full confidentiality, integrity, and availability impact on the affected 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