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    CVE-2026-12771

    A vulnerability was identified in BerriAI litellm up to 1.82.2. This affects an unknown function of the file litellm/proxy/auth/user_api_key_auth.py of the component M2M JWT Handler. Such manipulation leads to improper authorization. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is reported as difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.

    Published:Jun 21, 2026
    Last Modified:Jun 22, 2026
    EPS:Jun 21, 2026
    EPSS Score:
    CVSS Score:5

    Affected Products

    Vendor
    Litellm
    Product
    Litellm

    Exploits

    https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248dhttps://vuldb.com/submit/811280

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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