Hi

Severity: low

Vendor:
The Dubbo Project Team

Versions Affected:
Dubbo 2.7.0 to 2.7.9
Dubbo 2.6.0 to 2.6.9
Dubbo all 2.5.x versions (not supported by official team any longer)

Description:
The usage of parseURL method will lead to the bypass of white host check which 
can cause open redirect or SSRF vulnerability.  Evil URL sample: 
https://evilhost#@whitehost

Mitigation:
Upgrade to 2.7.10+ or 2.6.9+ accordingly based on the version currently using. 
https://github.com/apache/dubbo/releases/tag/dubbo-2.7.10
https://github.com/apache/dubbo/releases/tag/dubbo-2.6.10
https://dubbo.apache.org/en/blog/2020/05/18/past-releases/

Credit:
This issue was first reported by Bing Dong

Jun

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