Vulnerability advisory

EEF-CVE-2026-81632

Single-use sign-in token placed in a redirect query string in AshAuthenticationPhoenix

Published Sep 17, 2026Updated Sep 17, 2026OSV record ↗

Also known as CVE-2026-81632GHSA-8jh5-339h-mqx9

Severity

CVSS 4.0CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Affected versions

ash_authentication_phoenix Hex

All ash_authentication_phoenix advisories →

Affected	Fixed in
`1.7.0` to before 2.17.4	`2.17.4`Advisories →
`3.0.0-rc.0` to before 3.0.0-rc.11	`3.0.0-rc.11`Advisories →
Also listed as affected (89) `1.7.0` `1.7.1` `1.7.2` `1.7.3` `1.8.0` `1.8.1` `1.8.2` `1.8.3` `1.8.4` `1.8.5` `1.8.6` `1.8.7` `1.9.0` `1.9.1` `1.9.2` `1.9.3` `1.9.4` `2.0.0` `2.0.0-rc.0` `2.0.0-rc.1` `2.0.0-rc.2` `2.0.1` `2.0.2` `2.1.0` `2.1.1` `2.1.10` `2.1.11` `2.1.2` `2.1.3` `2.1.4` `2.1.5` `2.1.6` `2.1.7` `2.1.8` `2.1.9` `2.10.0` `2.10.1` `2.10.2` `2.10.3` `2.10.4` `2.10.5` `2.11.0` `2.12.0` `2.12.1` `2.12.2` `2.13.0` `2.13.1` `2.14.0` `2.14.1` `2.15.0` `2.16.0` `2.17.0` `2.17.1` `2.17.2` `2.17.3` `2.2.0` `2.2.1` `2.3.0` `2.4.0` `2.4.1` `2.4.2` `2.4.3` `2.4.4` `2.4.5` `2.4.6` `2.4.7` `2.4.8` `2.5.0` `2.5.1` `2.5.2` `2.5.3` `2.5.4` `2.6.0` `2.6.1` `2.6.2` `2.6.3` `2.7.0` `2.8.0` `2.9.0` `3.0.0-rc.0` `3.0.0-rc.1` `3.0.0-rc.10` `3.0.0-rc.2` `3.0.0-rc.3` `3.0.0-rc.4` `3.0.0-rc.6` `3.0.0-rc.7` `3.0.0-rc.8` `3.0.0-rc.9`

ash_authentication Hex

All ash_authentication advisories →

Affected	Fixed in
`3.10.5` to before 4.15.0	`4.15.0`Advisories →
`5.0.0-rc.0` to before 5.0.0-rc.14	`5.0.0-rc.14`Advisories →
Also listed as affected (133) `3.10.5` `3.10.6` `3.10.7` `3.10.8` `3.11.0` `3.11.1` `3.11.10` `3.11.11` `3.11.12` `3.11.13` `3.11.14` `3.11.15` `3.11.16` `3.11.2` `3.11.3` `3.11.4` `3.11.5` `3.11.6` `3.11.7` `3.11.8` `3.11.9` `3.12.0` `3.12.1` `3.12.2` `3.12.3` `3.12.4` `4.0.0` `4.0.0-rc.0` `4.0.0-rc.1` `4.0.0-rc.2` `4.0.0-rc.3` `4.0.0-rc.5` `4.0.0-rc.6` `4.0.1` `4.0.2` `4.0.3` `4.0.4` `4.1.0` `4.10.0` `4.11.0` `4.12.0` `4.13.0` `4.13.1` `4.13.2` `4.13.3` `4.13.4` `4.13.5` `4.13.6` `4.13.7` `4.14.0` `4.14.1` `4.14.2` `4.2.0` `4.2.1` `4.2.2` `4.2.3` `4.2.4` `4.2.5` `4.2.6` `4.2.7` `4.3.0` `4.3.1` `4.3.10` `4.3.11` `4.3.12` `4.3.2` `4.3.3` `4.3.4` `4.3.5` `4.3.6` `4.3.7` `4.3.8` `4.3.9` `4.4.0` `4.4.1` `4.4.2` `4.4.3` `4.4.4` `4.4.5` `4.4.6` `4.4.7` `4.4.8` `4.4.9` `4.5.0` `4.5.1` `4.5.2` `4.5.3` `4.5.4` `4.5.5` `4.5.6` `4.6.0` `4.6.1` `4.6.2` `4.6.3` `4.6.4` `4.7.0` `4.7.1` `4.7.2` `4.7.3` `4.7.4` `4.7.5` `4.7.6` `4.8.0` `4.8.1` `4.8.2` `4.8.3` `4.8.5` `4.8.6` `4.8.7` `4.9.0` `4.9.1` `4.9.2` `4.9.3` `4.9.4` `4.9.5` `4.9.6` `4.9.7` `4.9.8` `4.9.9` `5.0.0-rc.0` `5.0.0-rc.1` `5.0.0-rc.10` `5.0.0-rc.11` `5.0.0-rc.12` `5.0.0-rc.13` `5.0.0-rc.2` `5.0.0-rc.3` `5.0.0-rc.4` `5.0.0-rc.5` `5.0.0-rc.6` `5.0.0-rc.7` `5.0.0-rc.8` `5.0.0-rc.9`

Repository

Affected commits	Fixed by commit
GIT github.com/team-alembic/ash_authentication_phoenix ↗
903f3a386e1aba2f7b070187ef6f31215a92bdfd to before 920257d0460b9c7cbb42a83d0888c10f4eeeb88a	`920257d0460b9c7cbb42a83d0888c10f4eeeb88a`
Not specified	`ff5ad8737748afed9cdfde3ec3a05b8a4702a742`
Also listed as affected (88) `v2.17.3` `v3.0.0-rc.10` `v2.17.2` `v3.0.0-rc.9` `v2.17.1` `3.0.0-rc.8` `2.17.0` `v3.0.0-rc.7` `v2.16.0` `v3.0.0-rc.6` `v3.0.0-rc.4` `v3.0.0-rc.3` `3.0.0-rc.3` `v3.0.0-rc.1` `v2.15.0` `v3.0.0-rc.0` `v2.14.1` `v2.14.0` `v2.13.1` `v2.13.0` `v2.12.2` `v2.12.1` `v2.12.0` `v2.11.0` `v2.10.5` `v2.10.4` `v2.10.3` `v2.10.2` `v2.10.1` `v2.10.0` `v2.9.0` `v2.7.0` `v2.6.3` `v2.6.2` `v2.6.1` `v2.6.0` `v2.5.4` `v2.5.3` `v2.5.2` `v2.5.1` `v2.5.0` `v2.4.8` `v2.4.7` `v2.4.6` `v2.4.5` `v2.4.4` `v2.4.3` `v2.4.2` `v2.4.1` `v2.4.0` `v2.3.0` `v2.2.1` `v2.2.0` `v2.1.11` `v2.1.10` `v2.1.9` `v2.1.8` `v2.1.7` `v2.1.6` `v2.1.5` `v2.1.4` `v2.1.3` `v2.1.2` `v2.1.1` `v2.1.0` `v2.0.2` `v2.0.1` `v2.0.0` `v2.0.0-rc.3` `v2.0.0-rc.2` `v2.0.0-rc.1` `v2.0.0-rc.0` `v1.9.4` `v1.9.2` `v1.9.1` `v1.9.0` `v1.8.7` `v1.8.6` `v1.8.5` `v1.8.4` `v1.8.3` `v1.8.2` `v1.8.1` `v1.8.0` `v1.7.3` `v1.7.2` `v1.7.1` `v1.7.0`
GIT github.com/team-alembic/ash_authentication ↗
eca8cadea0f1595ed2c10a0c177b1da9aa9e5269 to before bbf345c1bb7aa28bce5dd856ac0ed2427f103859	`bbf345c1bb7aa28bce5dd856ac0ed2427f103859`
Not specified	`8d8ddd25c69b669a92a701af74bff42e1aada998`
Also listed as affected (129) `v4.14.2` `v5.0.0-rc.13` `v4.14.1` `v5.0.0-rc.12` `v5.0.0-rc.11` `v5.0.0-rc.10` `v4.14.0` `v4.13.7` `5.0.0-rc.9` `5.0.0-rc.8` `v5.0.0-rc.7` `v5.0.0-rc.6` `v5.0.0-rc.5` `v5.0.0-rc.4` `v5.0.0-rc.3` `v5.0.0-rc.2` `v5.0.0-rc.1` `v5.0.0-rc.0` `v4.13.6` `v4.13.5` `v4.13.4` `v4.13.3` `v4.13.2` `v4.13.1` `v4.13.0` `v4.12.0` `v4.11.0` `v4.10.0` `v4.9.9` `v4.9.8` `v4.9.7` `v4.9.6` `v4.9.5` `v4.9.4` `v4.9.3` `v4.9.2` `v4.9.1` `v4.9.0` `v4.8.7` `v4.8.5` `v4.8.4` `v4.8.3` `v4.8.2` `v4.8.1` `v4.8.0` `v4.7.7` `v4.7.6` `v4.7.5` `v4.7.4` `v4.7.3` `v4.7.2` `v4.7.1` `v4.7.0` `v4.6.4` `v4.6.3` `v4.6.2` `v4.6.1` `v4.6.0` `v4.5.6` `v4.5.5` `v4.5.4` `v4.5.3` `v4.5.2` `v4.5.1` `v4.4.9` `v4.4.8` `v4.4.7` `v4.4.6` `v4.4.5` `v4.4.4` `v4.4.3` `v4.4.2` `v4.4.1` `v4.4.0` `v4.3.12` `v4.3.10` `v4.3.9` `v4.3.7` `v4.3.6` `v4.3.4` `v4.3.3` `v4.3.2` `v4.3.1` `v4.3.0` `v4.2.7` `v4.2.5` `v4.2.3` `v4.2.2` `v4.2.1` `v4.2.0` `v4.1.0` `v4.0.4` `v4.0.3` `v4.0.2` `v4.0.1` `v4.0.0` `v4.0.0-rc.7` `v4.0.0-rc.6` `v4.0.0-rc.5` `v4.0.0-rc.4` `v4.0.0-rc.3` `v4.0.0-rc.2` `v4.0.0-rc.1` `v4.0.0-rc.0` `v3.12.4` `v3.12.3` `v3.12.2` `v3.12.1` `v3.12.0` `v3.11.16` `v3.11.15` `v3.11.14` `v3.11.13` `v3.11.12` `v3.11.10` `v3.11.9` `v3.11.8` `v3.11.7` `v3.11.6` `v3.11.5` `v3.11.4` `v3.11.3` `v3.11.2` `v3.11.1` `v3.11.0` `v3.10.8` `v3.10.7` `v3.10.6` `v3.10.5`

Description

Summary

Use of HTTP Request With Sensitive Query String vulnerability in team-alembic AshAuthenticationPhoenix allows someone able to read access logs, proxy logs or browser history to recover a single-use sign-in token and authenticate as its owner.

After a successful password sign-in, AshAuthentication.Phoenix.Components.Password.SignInForm builds the sign_in_with_token path with the freshly issued user.__metadata__.token as a query parameter and redirects the browser to it with a GET. The token therefore travels in the request line, where web servers, reverse proxies, request telemetry and the browser's own history record it, all of which outlive the request and are ordinarily less protected than session storage. The redirect destination is restricted to a local path, so this is not an open redirect; the exposure is the retention of a live credential.

This issue affects ash_authentication_phoenix: from 1.7.0 before 2.17.4 and from 3.0.0-rc.0 before 3.0.0-rc.11; ash_authentication: from 3.10.5 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.