BIT-nifi-2020-9491

    Dashboard / Vulnerabilities / BIT-nifi-2020-9491

    BIT-nifi-2020-9491

    Published: 12 Sept 2025Last Modified: 8 Sept 2026

    Summary:

    Details: In Apache NiFi 1.2.0 to 1.11.4, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by processors like ListenHTTP, HandleHttpRequest, etc. However intracluster communication such as cluster request replication, Site-to-Site, and load balanced queues continued to support TLS v1.0 or v1.1.

    References: https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718%40%3Ccommits.nifi.apache.org%3E, https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf%40%3Ccommits.nifi.apache.org%3E, https://nifi.apache.org/security#CVE-2020-9491, https://nvd.nist.gov/vuln/detail/CVE-2020-9491

    Affected packages

    Package

    Name: nifi

    Purl: pkg:bitnami/nifi

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 1.0.0
    Fixed -None

    Affected versions

    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
    BIT-nifi-2020-9491 | CVE-DB