mauriceboe TREK up to 3.2.x LLM Parsing openai-compatible.client.ts llm_base_url server-side request forgery

Summaryinfo

A vulnerability categorized as critical has been discovered in mauriceboe TREK up to 3.2.x. The impacted element is an unknown function of the file server/src/nest/llm-parse/clients/openai-compatible.client.ts of the component LLM Parsing. The manipulation of the argument llm_base_url results in server-side request forgery. This vulnerability is identified as CVE-2026-77294. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in mauriceboe TREK up to 3.2.x. Affected is an unknown functionality of the file server/src/nest/llm-parse/clients/openai-compatible.client.ts of the component LLM Parsing. The manipulation of the argument llm_base_url with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

TREK is a collaborative travel planner. Prior to 3.3.0, TREK allows an authenticated user to store an attacker-controlled llm_base_url through the settings API when the LLM_PARSING feature is enabled. Write permission to the target trip instance is required to trigger the vulnerable AI-assisted import path. The value is consumed by the clients in server/src/nest/llm-parse/clients/openai-compatible.client.ts, server/src/nest/llm-parse/clients/anthropic.client.ts, and server/src/nest/llm-parse/router/ollama-format.client.ts without applying the server-side request forgery guard. Triggering AI-assisted trip parsing causes the server to request the supplied destination, and upstream error response text can be returned in parsing warnings. This permits internal service discovery and access to link-local cloud metadata, with possible disclosure of infrastructure credentials and subsequent modification of protected cloud resources. This issue is fixed in version 3.3.0.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-77294 since 08/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit.

Upgrading to version 3.3.0 eliminates this vulnerability.

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Productinfo

Vendor

• mauriceboe

Name

• TREK

Version

• 3.0
• 3.1
• 3.2

CPE 2.3info

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CPE 2.2info

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