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Advisories

NextChat 2.15.8 through 2.16.1 OpenAI API Key Disclosure

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severity
high
date
Affecting

  • NextChat <= 2.16.1

CWE
  • CWE-20 Improper Input Validation
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
George Chen
Description
NextChat versions from 2.15.8 through 2.16.1 contain an improper URL validation vulnerability in the proxy endpoint that allows attackers to obtain the server's OpenAI API key. The x-base-url header is validated using substring matching instead of hostname parsing, allowing any URL containing 'api.openai.com' to pass validation and receive the server's credentials in the Authorization header.

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