CVE-2026-38924Public exploitNetwork attack vector

Network exposure via all-interface HTTP binding

Published Sep 14, 2026 · Updated Sep 14, 2026

Network exposure in the HTTP-mode MCP server in Oraios AI Serena before 1.0.0 allows remote attackers to reach its tool interface. The CLI and server factory use 0.0.0.0 as the default host, causing HTTP and SSE transports to listen on every interface instead of loopback. Exposure requires starting either network transport; reachable callers can interact with the tools enabled for that Serena context.

CVSS severity9.8
Critical
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Network exposure in the HTTP-mode MCP server in Oraios AI Serena before 1.0.0 allows remote attackers to reach its tool interface. The CLI and server factory use 0.0.0.0 as the default host, causing HTTP and SSE transports to listen on every interface instead of loopback. Exposure requires starting either network transport; reachable callers can interact with the tools enabled for that Serena context.

The record

CVE
CVE-2026-38924
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1210
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8Dash SecurityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1210Exploitation of Remote Services

Public exploit references

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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