CVE-2026-32807
Received Received - Intake

dataCycle-CORE Unauthenticated File Access Vulnerability

Publication date: 2026-07-20

Last updated on: 2026-07-20

Assigner: GitHub, Inc.

Description
dataCycle is a data management system for centrally storing, managing, searching, finding, and distributing data. In dataCycle-CORE, the module handling core processing and framework rules, before and including version 25.07.3, anyone with a DataLink UUID can fetch the attached text file directly, even if the link is expired, the caller is unauthenticated, or the normal show flow would have denied access. Because the route is public and the mailer embeds the direct file URL, any leaked, forwarded, logged, or stale email link can continue to expose the attachment.

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Meta Information

Published
2026-07-20
Last Modified
2026-07-20
Generated
2026-07-21
AI Q&A
2026-07-20
EPSS Evaluated
N/A
NVD
CVE-2026-32807
EUVD
EUVD-2026-45980

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
datacycle-engine datacycle-core to 25.07.3 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-285 The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability in dataCycle-CORE allows anyone with a DataLink UUID to directly download attached text files without proper authorization checks. The system fails to validate link expiration, user authentication, or access permissions, making the download route public. Even expired or stale links can still expose attachments if leaked or forwarded.

Detection Guidance

Check for unauthorized access to text files via DataLink UUIDs by reviewing server logs for public download route requests. Look for patterns of direct file access attempts or unusual UUID usage in logs.

Impact Analysis

Attackers could access sensitive data by exploiting leaked or stale DataLink UUIDs. Since no authentication or privileges are required, the risk of unauthorized data exposure is high. This could lead to data breaches, privacy violations, or compliance violations depending on the nature of the exposed files.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other regulations due to unauthorized data exposure. GDPR requires protecting personal data, while HIPAA mandates safeguarding health information. Unauthorized access risks fines, legal penalties, and reputational damage for affected organizations.

Mitigation Strategies

Update dataCycle-CORE to version 25.07.3 or later to patch the vulnerability. Review and revoke any exposed DataLink UUIDs. Restrict public access to the download route and validate authentication and authorization for all file requests.

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