CLEANSTART-2026-TC39210

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    CLEANSTART-2026-TC39210

    Published: 31 Oct 2026Last Modified: 31 Oct 2026
    Upstream:
    CVE-2026-24281

    Summary: Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper s...

    Details: Security vulnerability affects the druid-fips package. Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper servers or clients with a valid certificate for the PTR name.

    References: https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-TC39210.json, https://osv.dev/vulnerability/CVE-2026-24281, https://nvd.nist.gov/vuln/detail/CVE-2026-24281

    Affected packages

    Package

    Name: druid-fips

    Purl: pkg:apk/cleanstart/druid-fips

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -34.0.0-r1

    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
    CLEANSTART-2026-TC39210 | CVE-DB