EUVD-2026-17979

| CVE-2026-34236 HIGH
2026-04-01 GitHub_M GHSA-w3wc-44p4-m4j7
8.2
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

4
Patch Released
Apr 02, 2026 - 02:30 nvd
Patch available
EUVD ID Assigned
Apr 01, 2026 - 17:30 euvd
EUVD-2026-17979
Analysis Generated
Apr 01, 2026 - 17:30 vuln.today
CVE Published
Apr 01, 2026 - 17:04 nvd
HIGH 8.2

Tags

PHP Information Disclosure

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.

Analysis

Insufficient entropy in cookie encryption within Auth0 PHP SDK versions 8.0.0 through 8.18.x enables brute-force attacks against session cookie encryption keys, potentially allowing authenticated threat actors with network access to forge arbitrary session cookies and bypass authentication controls. Vendor-released patch available in version 8.19.0. …

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Remediation

Within 24 hours: inventory all applications and services using Auth0 PHP SDK and document current versions in use. Within 7 days: upgrade to Auth0 PHP SDK version 8.19.0 or later across all production and non-production environments. …

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Priority Score

41
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +41
POC: 0

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EUVD-2026-17979 vulnerability details – vuln.today
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