OCTOBER 13, 2026
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Case File

CVE-2026-81632

HIGH · CVSS 7.2 EPSS 0.21% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-17 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

The vulnerability allows an attacker with access to logs or browser history to retrieve a sensitive single-use sign-in token due to its exposure in the URL query string during the authentication process. This could lead to unauthorized access as the attacker can authenticate as the token's owner. Organizations using affected versions of AshAuthenticationPhoenix and AshAuthentication should prioritize patching to mitigate the risk of credential theft.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-81632
Severity
HIGH
CVSS
7.2
EPSS
0.21%

Original NVD 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.