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    CVE-2026-91995

    pig before 4.1.0 contains an authentication bypass vulnerability in the /register/password endpoint where password verification results are discarded, allowing any value as the current password. Remote attackers can submit a username with an incorrect current password to overwrite any account credential including the admin account and gain full administrative control.

    Published:Sep 15, 2026
    Last Modified:Sep 18, 2026
    EPS:Sep 15, 2026
    EPSS Score:0.00608
    CVSS Score:9.1

    Affected Products

    Vendor
    Pig-mesh
    Product
    Pig

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-620 Unverified Password Change

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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