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Advisories

AmoyLab Unla through 0.10.0 OAuth2 Authentication Bypass via /authorize

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severity
high
date
Affecting

  • Unla <= 0.10.0

CWE
  • CWE-287 Improper Authentication
CVSS
8.8
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
hieuPenguinnn
Description
AmoyLab Unla through 0.10.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain valid access tokens because the OAuth2 server never authenticates a resource owner. Attackers can register a client, request a code from /authorize, and exchange it at /token to access OAuth2-protected MCP prefixes, proxied upstream APIs and injected credentials.

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