CVE-2026-19287

Local JSON file manipulation via unchecked identifier

Published Aug 8, 2026 · Updated Aug 8, 2026

Path traversal in HistoryService in Alex Brinsmead Mindpilot MCP 0.5.0 allows local users to read, overwrite, or delete JSON files. HTTP history routes pass an attacker-controlled id to path.join, which appends .json without validating the identifier or checking that the result remains under the data directory. Exploitation requires access to the locally hosted HTTP service, and filesystem permissions bound which JSON files can be manipulated.

CVSS severity5.3
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in HistoryService in Alex Brinsmead Mindpilot MCP 0.5.0 allows local users to read, overwrite, or delete JSON files. HTTP history routes pass an attacker-controlled id to path.join, which appends .json without validating the identifier or checking that the result remains under the data directory. Exploitation requires access to the locally hosted HTTP service, and filesystem permissions bound which JSON files can be manipulated.

The record

CVE
CVE-2026-19287
Published
Aug 8, 2026
Updated
Aug 8, 2026
Vendor
Alex Brinsmead
Product
Mindpilot MCP
Classifications
CWE-22, T1005, T1565.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 8, 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=0.5.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Alex Brinsmead · Mindpilot MCPversion=0.5.0

Published CVSS scores

1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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