CVE-2026-94046Public exploitNetwork attack vector

Authenticated file read via attacker-chosen project root

Published Sep 20, 2026 · Updated Sep 20, 2026

Path traversal in ACE-MCP 4.10.0 through 4.10.8 allows remote authenticated users to read server-accessible UTF-8 files. The get_file_snippet path check verifies filePath only against the client-supplied projectRootPath, then readFile opens the resolved path. Access to the MCP interface is required, and disclosure is limited to files readable by the server process.

CVSS severity5.3
Medium
EPSS probability0.47%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in ACE-MCP 4.10.0 through 4.10.8 allows remote authenticated users to read server-accessible UTF-8 files. The get_file_snippet path check verifies filePath only against the client-supplied projectRootPath, then readFile opens the resolved path. Access to the MCP interface is required, and disclosure is limited to files readable by the server process.

The record

CVE
CVE-2026-94046
Published
Sep 20, 2026
Updated
Sep 20, 2026
Vendor
0215AndrewFeng
Product
ACE-MCP
Classifications
CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 20, 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=4.10.0
  2. Affected versionversion=4.10.1
  3. Affected versionversion=4.10.2
  4. Affected versionversion=4.10.3
  5. Affected versionversion=4.10.4
  6. Affected versionversion=4.10.5
  7. Affected versionversion=4.10.6
  8. Affected versionversion=4.10.7
  9. Affected versionversion=4.10.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

0215AndrewFeng · ACE-MCPversion=4.10.0; version=4.10.1; version=4.10.2; version=4.10.3; version=4.10.4; version=4.10.5; version=4.10.6; version=4.10.7; version=4.10.8

Published CVSS scores

4.3VulDB CNACVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.0VulDB CNAAV:N/AC:L/Au:S/C:P/I:N/A:N
3.9VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

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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