Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. From version 8.0.0 to before version 8.19.0, in applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies. This issue has been patched in version 8.19.0.
History

Thu, 02 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Auth0
Auth0 auth0-php
Vendors & Products Auth0
Auth0 auth0-php

Wed, 01 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
Description Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. From version 8.0.0 to before version 8.19.0, in applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies. This issue has been patched in version 8.19.0.
Title Auth0 PHP SDK Insufficient Entropy in Cookie Encryption
Weaknesses CWE-331
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N'}

ssvc

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


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-04-01T17:04:53.378Z

Updated: 2026-04-01T17:59:59.001Z

Reserved: 2026-03-26T16:22:29.034Z

Link: CVE-2026-34236

cve-icon Vulnrichment

Updated: 2026-04-01T17:59:53.927Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-01T18:16:30.007

Modified: 2026-04-03T16:10:52.680

Link: CVE-2026-34236

cve-icon Redhat

No data.