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    CVE-2026-31818

    Budibase is an open-source low-code platform. Prior to version 3.33.4, a server-side request forgery (SSRF) vulnerability exists in Budibase's REST datasource connector. The platform's SSRF protection mechanism (IP blacklist) is rendered completely ineffective because the BLACKLIST_IPS environment variable is not set by default in any of the official deployment configurations. When this variable is empty, the blacklist function unconditionally returns false, allowing all requests through without restriction. This issue has been patched in version 3.33.4.

    Published:Apr 3, 2026
    Last Modified:Apr 9, 2026
    EPS:Apr 3, 2026
    EPSS Score:0.0001
    CVSS Score:9.6

    Affected Products

    Vendor
    Budibase
    Product
    Budibase

    Exploits

    https://github.com/Budibase/budibase/security/advisories/GHSA-7r9j-r86q-7g45

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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