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    CVE-2022-40482

    The authentication method in Laravel 8.x through 9.x before 9.32.0 was discovered to be vulnerable to user enumeration via timeless timing attacks with HTTP/2 multiplexing. This is caused by the early return inside the hasValidCredentials method in the Illuminate\Auth\SessionGuard class when a user is found to not exist.

    Published:Apr 25, 2023
    Last Modified:May 30, 2025
    EPS:Apr 25, 2023
    EPSS Score:0.00298
    CVSS Score:5.3

    Affected Products

    Vendor
    Laravel
    Product
    Framework

    Exploits

    https://ephort.dk/blog/laravel-timing-attack-vulnerability/https://github.com/ephort/laravel-user-enumeration-demohttps://ephort.dk/blog/laravel-timing-attack-vulnerability/https://github.com/ephort/laravel-user-enumeration-demo

    Common Weakness Enumeration

    CWE-203 Observable Discrepancy

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-189 Black Box Reverse Engineering

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High