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.

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History

Thu, 17 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 17 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Single-use sign-in token placed in a redirect query string in AshAuthenticationPhoenix
First Time appeared Team-alembic
Team-alembic ash Authentication
Team-alembic ash Authentication Phoenix
Weaknesses CWE-598
CPEs cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*
cpe:2.3:a:team-alembic:ash_authentication_phoenix:*:*:*:*:*:*:*:*
Vendors & Products Team-alembic
Team-alembic ash Authentication
Team-alembic ash Authentication Phoenix
References
Metrics cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: EEF

Published:

Updated: 2026-09-17T18:29:20.271Z

Reserved: 2026-09-11T18:45:01.476Z

Link: CVE-2026-81632

cve-icon Vulnrichment

Updated: 2026-09-17T18:29:16.546Z

cve-icon NVD

Status : Received

Published: 2026-09-17T14:17:31.953

Modified: 2026-09-17T19:17:03.560

Link: CVE-2026-81632

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses