CVE-2026-35228

High

Published: 05 May 2026

Published

05 May 2026

Modified

05 May 2026

KEV Added

—

Patch

—

CVSS Score 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS Score 0.0008 22.8th percentile

Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-35228 is a high-severity SQL Injection (CWE-89) vulnerability in Oracle MCP Server (inferred from references). Its CVSS base score is 8.7 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 22.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

This vulnerability is AI-related — categorised as AI Agent Protocols and Integrations; in the Protocol-Specific Risks risk domain.

The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly prevents SQL injection vulnerabilities like CVE-2026-35228 by requiring validation of all information inputs to block malicious SQL execution.

SI-2 Flaw Remediation good match

prevent

Ensures timely identification, reporting, and remediation of flaws such as this SQL injection vulnerability in the Oracle MCP Server Helper Tool.

RA-5 Vulnerability Monitoring and Scanning good match

detect

Provides vulnerability scanning and monitoring to identify and prioritize SQL injection issues like CVE-2026-35228 for remediation.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

SQL injection in a network-accessible HTTP helper tool directly enables T1190 (Exploit Public-Facing Application) for initial compromise and data access/manipulation.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

Vulnerability in the Oracle MCP Server Helper Tool product of Oracle Open Source Projects (component: helper tool). The supported versions that is affected is 1.0.1-1.0.156. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle MCP…

Server Helper Tool. Successful attacks of this vulnerability can result in Oracle MCP Server Helper Tool executing malicious SQL.

Deeper analysisAI

CVE-2026-35228 is a vulnerability in the Oracle MCP Server Helper Tool product of Oracle Open Source Projects, specifically affecting the helper tool component. The supported versions impacted are 1.0.1 through 1.0.156. This is an SQL injection issue (CWE-89), published on 2026-05-05, with a CVSS v3.1 base score of 8.7 (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N).

An easily exploitable vulnerability allows an unauthenticated attacker with network access via HTTP to compromise the Oracle MCP Server Helper Tool. Exploitation requires low privileges and user interaction but has low attack complexity over the network. Successful attacks result in the tool executing malicious SQL, enabling high impacts to confidentiality and integrity with a changed scope.

Mitigation details are available in the Oracle security advisory at https://www.oracle.com/security-alerts/all-oracle-cves-outside-other-oracle-public-documents.html.