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OpenAdvisories
High · 8.2 CVE-2026-34236 EUVD-2026-17979GHSA-w3wc-44p4-m4j7

Auth0 PHP SDK Insufficient Entropy in Cookie Encryption

Published Apr 1, 2026 · Updated Apr 1, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
auth0 auth0-PHP >= 8.0.0, < 8.19.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist auth0/auth0-php >= 8.0.0, < 8.19.0 8.19.0 GHSA-w3wc-44p4-m4j7

References