Intel

AIKIDO-2026-946787

ash_authentication is vulnerable to Improper Authentication

Improper AuthenticationCVE-2026-80218 Published Yesterday

76

High Risk

This Affects:

ELIXIRash_authentication
3.10.5 - 4.14.2
Fixed in 4.15.0
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TL;DR

In ash_authentication, sign-in token minted for one resource accepted by another in AshAuthentication. The WebAuthn sign-in and remember-me preparations carry copies of the same helper and drop the path in the same way. The magic link sign-in path pins the subject name against the resource and is not affected.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

ash_authentication is vulnerable to Improper Authentication in versions 3.10.5 - 4.14.2.

How to fix this

Upgrade the ash_authentication library to the patch version.

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