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    CVE-2026-3805

    When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.

    Published:Mar 11, 2026
    Last Modified:Mar 20, 2026
    EPS:Mar 11, 2026
    EPSS Score:0.00054
    CVSS Score:7.5

    Affected Products

    Vendor
    Curl
    Product
    Curl
    Vendor
    Haxx
    Product
    Curl

    Exploits

    https://hackerone.com/reports/3591944https://github.com/Rat5ak/CVE-2026-3805-curl-SMB-UAF

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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