CVE-2026-77294 TREK: Server-Side Request Forgery via User-Configurable LLM Base URL
Authenticated users can exploit SSRF in TREK to access internal services and cloud metadata, potentially leading to credential disclosure and resource modification.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77294?
CVE-2026-77294 is a high-severity server-side request forgery vulnerability in mauriceboe TREK, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-918
Which versions are affected by CVE-2026-77294?
How do I fix CVE-2026-77294?
No fix has been published for CVE-2026-77294 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-77294 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-77294 exists.
Sources
Also known as GHSA-fmq9-ggh3-647p.