CVE-2026-85666Public exploitNetwork attack vector

Internal data disclosure via unvalidated MCP server URL

Published Sep 4, 2026 · Updated Sep 4, 2026

SSRF in OGX 1.3.1 and earlier allows remote attackers to read internal service data through the OpenAI-compatible Responses API. The _process_mcp_tool path passes an attacker-controlled server_url to list_mcp_tools, which opens an MCP connection without applying validate_url_not_private. The default starter configuration requires no authentication, exposing internal services and cloud metadata to requests from the server's network position.

CVSS severity8.7
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

SSRF in OGX 1.3.1 and earlier allows remote attackers to read internal service data through the OpenAI-compatible Responses API. The _process_mcp_tool path passes an attacker-controlled server_url to list_mcp_tools, which opens an MCP connection without applying validate_url_not_private. The default starter configuration requires no authentication, exposing internal services and cloud metadata to requests from the server's network position.

The record

CVE
CVE-2026-85666
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
OGX
Product
OGX
Classifications
CWE-918, T1552.005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <=1.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OGX · OGXversion=0 <=1.3.1

Published CVSS scores

7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Cloud Instance Metadata API

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo