CVE-2026-46840Network attack vector

Unauthenticated service takeover

Published May 28, 2026 · Updated May 28, 2026

Missing authentication in Oracle REST Data Services 24.2.0 through 26.1.0 allows remote attackers to take over the service via HTTPS. Oracle identifies the Backend-as-a-Service component but has not disclosed the faulty operation or request-handling path. No credentials or user interaction are required, and successful exploitation grants control of ORDS with impacts extending to connected products.

CVSS severity10.0
Critical
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Oracle REST Data Services 24.2.0 through 26.1.0 allows remote attackers to take over the service via HTTPS. Oracle identifies the Backend-as-a-Service component but has not disclosed the faulty operation or request-handling path. No credentials or user interaction are required, and successful exploitation grants control of ORDS with impacts extending to connected products.

The record

CVE
CVE-2026-46840
Published
May 28, 2026
Updated
May 28, 2026
Vendor
Oracle
Product
Oracle REST Data Services
Classifications
CWE-306, CWE-284, CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=24.2.0 <=26.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle · Oracle REST Data Servicesversion=24.2.0 <=26.1.0

Published CVSS scores

10.0OracleCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-284Improper Access Control
CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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