AIKIDO-2024-10293
github.com/valyala/fasthttp is vulnerable to Open Redirect
55
Medium Risk
This Affects:
github.com/valyala/fasthttpTL;DR
Affected versions of the package are vulnerable to open redirect due to improper handling of malformed URLs. Attackers can exploit this vulnerability by sending a URL containing a comma (e.g., http://example.com,/) to the Validator, bypassing URL blocklist validation. This allows attackers to send requests to a blocklisted hostname, potentially leading to SSRF (Server-Side Request Forgery) and RCE (Remote Code Execution) attacks.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
github.com/valyala/fasthttp is vulnerable to Open Redirect in versions 0.1.0 - 1.52.0.
How to fix this
Upgrade the github.com/valyala/fasthttp library to the patch version.
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