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HIGHCVE-2026-34236Published Modified CNA GitHub_M

CVE-2026-34236: Auth0 PHP SDK Insufficient Entropy in Cookie Encryption

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.

Metrics

CVSS v3.1
8.2
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • auth0 / auth0-PHP
    >= 8.0.0, < 8.19.0
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
CVE-2026-34236: Auth0 PHP SDK Insufficient Entropy in Cookie Encryption | HarborGuard CVE