CVE-2026-34236

HIGH

Auth0 PHP SDK Insufficient Entropy in Cookie Encryption

Title source: cna
STIX 2.1

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.

References (2)

Scores

CVSS v3 8.2
EPSS 0.0001
EPSS Percentile 1.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-331
Status published
Products (3)
auth0/auth0-php 8.0.0 - 8.19.0Packagist
auth0/auth0-php 8.0.0 - 8.19.0
auth0/auth0-PHP >= 8.0.0, < 8.19.0
Published Apr 01, 2026
Tracked Since Apr 01, 2026