CVE-2026-46840

Critical

Description

Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are 24.2.0-26.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle REST Data Services. While the vulnerability is in Oracle REST Data Services, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle REST Data Services. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

SeverityCritical

CVSS10.0

Exploit probability—

Product

Oracle Rest Data Services

PublishedMay 28, 2026

First seenMay 28, 2026

Weakness typeCWE-284Improper access control CWE-287Improper authentication CWE-306Missing authentication for critical function

How to fix

Vendor advisories

oracle.com/security-alerts/cspumay2026.html

Affected products

Product	Affected versions	Fixed in
oracle rest_data_services	24.2.0 ≤ v ≤ 26.1.0	—

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