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    CVE-2025-49506

    APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as  Windows, BeOS, NetWare, or Android. Users are recommended to upgrade to version 1.6.4, which fixes this issue.

    Published:Aug 6, 2026
    Last Modified:Aug 7, 2026
    EPS:Aug 6, 2026
    EPSS Score:0.00394
    CVSS Score:7.5

    Affected Products

    Vendor
    Apache
    Product
    Apr-util
    Vendor
    Apache
    Product
    Portable Runtime Utility

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-208 Observable Timing Discrepancy

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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