Highlights
Auth Bypass: 70 prior fixes. Scrutinize any change in this area.
console: most-fixed (16 issues). Treat as high-risk during review.
74 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Auth Bypass: Nacos historically relied on easily spoofable client indicators (such as User-Agent headers) to identify internal server-to-server requests, allowing remote attackers to completely bypass authentication. Subsequent fixes enforced strict, configurable shared-secret identity verification.
Auth Bypass: Administrative endpoints, particularly those interacting with the embedded Derby database, were exposed without authorization checks, enabling unauthenticated remote command or database execution.
Deserialization of Untrusted Data: The use of the fastjson library for parsing arbitrary payload inputs exposed both the client and core state machine to remote code execution risks via unsafe deserialization, necessitating a migration to Jackson.