CVE-2026-34236
8.2 · HIGHOverview
CVE-2026-34236 is a high-severity vulnerability affecting auth0 auth0-php. It was published on April 1, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from auth0. Update auth0-php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| auth0 | auth0-php | >= 8.0.0, < 8.19.0 | Affected |
Frequently Asked Questions
What is CVE-2026-34236?
CVE-2026-34236 is a high-severity vulnerability affecting auth0 auth0-php. It was published on April 1, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).
How severe is CVE-2026-34236?
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-34236?
Check the references section for vendor advisories and patches from auth0. Update auth0-php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-34236?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-34236 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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