November 14, 2026

CVE Watchtower

CVE-2026-46840Oracle Rest Data Services Improper Access Control

NVDCVSS scored by secalert_us@oracle.com

Vulnerability Summary

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).
Severity Level
CRITICAL(10.0)
Published Date
May 28, 2026
Last Modified
Jul 21, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.73%Probability
Root Weakness (CWE)
CWE-284: Improper Access Control β†—
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CWE-287: Improper Authentication β†—
When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.
CWE-306: Missing Authentication for Critical Function β†—
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
CVSS v3.1 Base Metrics — Score 10.0 (CRITICAL)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Oracle Rest Data Services >= 24.2.0 and <= 26.1.0
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Plan remediation soon. No exploitation is confirmed yet, but the severity is critical.

  1. Check whether you run Oracle Rest Data Services and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.

Timeline

  • May 28, 2026Published
  • Jul 21, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

Get notified about new Oracle CVEsYou are reading CVE-2026-46840. Get an email when KEV listings, exploits or new CVEs match your stack.
Notify me about Oracle CVEs

Related Coverage

More Oracle Rest Data Services CVEs

External References

Data last checked: Nov 14, 2026 12:22 UTC