Intel

AIKIDO-2026-308110

ash_authentication is vulnerable to Authentication Bypass

Authentication BypassCVE-2026-76949 Published 2 days ago

91

Critical Risk

This Affects:

ELIXIRash_authentication
4.10.0 - 4.14.2
Fixed in 4.15.0
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TL;DR

In ash_authentication, remember-me sign-in guard reads a session key that is never written in ash_authentication, allowing session replacement. is enabled and otherwise writes the bare subject name. At the default setting the guard therefore reads a key that is never written, its already-signed-in branch is unreachable, and the remember-me sign-in runs on every request through the per-request browser pipeline plug.

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 Authentication Bypass in versions 4.10.0 - 4.14.2.

How to fix this

Upgrade the ash_authentication library to the patch version.

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