CVE-2026-34236 | auth0 auth0-PHP up to 8.18.x entropy (GHSA-w3wc-44p4-m4j7)

VDB-354736 · CVE-2026-34236 · GHSA-W3WC-44P4-M4J7 AUTH0 AUTH0-PHP UP TO 8.18.X ENTROPY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.6 $0-$5k 1.34+ Summaryinfo A vulnerability was found in auth0 auth0-PHP up to 8.18.x and classified as problematic. This affects an unknown function. Executing a manipulation can lead to entropy. This vulnerability is handled as CVE-2026-34236. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component. Detailsinfo A vulnerability classified as problematic was found in auth0 auth0-PHP up to 8.18.x. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a entropy vulnerability. The CWE definition for the vulnerability is CWE-331. The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. As an impact it is known to affect confidentiality. CVE summarizes: 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. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-34236 since 03/26/2026. The exploitation appears to be difficult. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001. Upgrading to version 8.19.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Productinfo Type Programming Language Software Vendor auth0 Name auth0-PHP Version 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 8.10 8.11 8.12 8.13 8.14 8.15 8.16 8.17 8.18 Website Product: https://github.com/auth0/auth0-PHP/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.6 VulDB Meta Temp Score: 5.6 VulDB Base Score: 3.1 VulDB Temp Score: 3.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.2 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Entropy CWE: CWE-331 / CWE-330 / CWE-310 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: auth0-PHP 8.19.0 Timelineinfo 03/26/2026 CVE reserved 04/01/2026 +5 days Advisory disclosed 04/01/2026 +0 days VulDB entry created 04/01/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-w3wc-44p4-m4j7 Status: Confirmed CVE: CVE-2026-34236 (🔒) GCVE (CVE): GCVE-0-2026-34236 GCVE (VulDB): GCVE-100-354736 Entryinfo Created: 04/01/2026 20:46 Changes: 04/01/2026 20:46 (66) Complete: 🔍 Cache ID: 99:433:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸