AIKIDO-2026-552020
aiosonic is vulnerable to Sensitive Information Disclosure
68
Medium Risk
This Affects:
aiosonicTL;DR
aiosonic's redirect handler strips only the Authorization header when a response redirects the client to a different host. When an application follows redirects with follow=True and supplies a Cookie or Proxy-Authorization header, those credentials are forwarded unchanged to whatever host the origin server names in Location:. A redirect to an attacker-controlled or compromised host receives the caller's session cookies or proxy credentials. The fix also drops Cookie and Proxy-Authorization headers when the redirect target host changes.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and your application follows redirects with follow=True while passing a Cookie or Proxy-Authorization header.
Background info
aiosonic is vulnerable to Sensitive Information Disclosure in versions 0.2.0 - 1.0.2.
How to fix this
Upgrade the aiosonic library to the patch version.
Are You Affected?
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SOC 2Compliant
ISO 27001Compliant