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    CVE-2026-56309

    Capgo before 12.128.2 fails to enforce plan/quota restrictions on the /files/upload/attachments endpoint, allowing plan-blocked apps to create publicly readable R2 objects. Attackers can upload arbitrary attachments using upload-scoped API keys that bypass plan checks, persist outside normal bundle metadata, and survive app deletion, enabling storage and bandwidth abuse.

    Published:Jul 10, 2026
    Last Modified:Jul 13, 2026
    EPS:Jul 10, 2026
    EPSS Score:0.00259
    CVSS Score:5.4

    Affected Products

    Vendor
    Cap-go
    Product
    Cap-go

    Exploits

    No exploit reference

    Related CVEs

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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