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CVE-2026-77294— TREK: Server-Side Request Forgery via User-Configurable LLM Base URL

Quick assessment

Affected
mauriceboe TREK
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TREK 是一款协作式旅行规划工具。在 3.3.0 版本之前，当启用 LLM_PARSING 功能时，经过身份验证的用户可通过设置 API 存储由攻击者控制的 llm_base_url 值。触发该漏洞所需的 AI 辅助导入路径需要对目标行程实例具有写权限。该值会被以下客户端直接使用，且未应用服务器端请求伪造（SSRF）防护机制： server/src/nest/llm-parse/clients/openai-compatible.client.ts server/src/nest/llm-parse/client

CVSS 8.1 · High EPSS 0.31% · P21

Affected Version Matrix 1

VendorProduct Version RangeStatus
mauriceboe TREK < 3.3.0 affected
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I. Basic Information for CVE-2026-77294

Vulnerability Information
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Vulnerability Title
TREK: Server-Side Request Forgery via User-Configurable LLM Base URL
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mauriceboe TREK < 3.3.0 -

II. Public POCs for CVE-2026-77294

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III. Intelligence Information for CVE-2026-77294

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Patches & Fixes for CVE-2026-77294 (1)

Vendor Advisories for CVE-2026-77294 (1)

Other References for CVE-2026-77294 (1)

Same Patch Batch · mauriceboe · 2026-09-24 · 4 CVEs total

CVE-2026-77293 7.1 HIGH TREK: Cross-user note-file deletion (IDOR / Broken Access Control)
CVE-2026-77320 5.3 MEDIUM TREK: Public trip share link ignores the `share_map` permission server-side (client-enforc
CVE-2026-77321 4.3 MEDIUM TREK MCP trip summary bypasses delegated OAuth read scopes

IV. Related Vulnerabilities

Same product: TREK
Same vendor: mauriceboe
Same weakness: CWE-918

V. Comments for CVE-2026-77294

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