CVE-2026-108596
Received Received - Intake

Authorization Bypass in OpenLIT Lets Users Access Unauthorized Telemetry

Publication date: 2026-10-10

Last updated on: 2026-10-10

Assigner: VulnCheck

Description
OpenLIT 2.1.0 contains an authorization bypass vulnerability that allows authenticated users to read other projects' telemetry by supplying a forged x-openlit-project-id header. Attackers who know a victim project id and database config id can query the trace read API to obtain traces including LLM prompts and completions.

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Meta Information

Published
2026-10-10
Last Modified
2026-10-10
Generated
2026-10-10
AI Q&A
2026-10-10
EPSS Evaluated
N/A
NVD
CVE-2026-108596
EUVD
EUVD-2026-96396

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
openlit openlit 2.1.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

OpenLIT 2.1.0 has an authorization bypass flaw where authenticated users can read telemetry data from other projects by sending a fake x-openlit-project-id header. This allows attackers with knowledge of a victim's project ID and database config ID to query the trace read API and access LLM prompts and completions.

Detection Guidance

To detect this vulnerability, monitor API requests containing the x-openlit-project-id header. Check for unauthorized access attempts to the trace read API by examining logs for mismatched project IDs between the authenticated user and the header value. Use tools like Wireshark or tcpdump to inspect HTTP headers for suspicious requests.

Impact Analysis

If exploited, this vulnerability could expose sensitive data like LLM prompts and completions from other projects. Attackers could gain unauthorized access to telemetry data, potentially leading to data leaks or privacy violations for affected users.

Compliance Impact

This vulnerability could violate GDPR's data protection principles by exposing personal or sensitive data without authorization. For HIPAA, it may risk unauthorized access to protected health information if telemetry includes such data, leading to compliance breaches and legal consequences.

Mitigation Strategies

Immediately upgrade OpenLIT to a patched version beyond 2.1.0. If upgrading is not possible, disable the trace read API or restrict access to authenticated users with verified project memberships. Review and update middleware to validate project IDs against user sessions rather than trusting headers.

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