BIT-node-2026-105482

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    BIT-node-2026-105482

    Published: 29 Oct 2026Last Modified: 29 Oct 2026

    Summary:

    Details: A flaw in Node.js DNS resolution allows hostnames containing a NUL byte to be silently truncated by the dns.resolve*() functions and dns.reverse(). This is an incomplete fix of CVE-2026-48930, which only covered dns.lookup() and the net/tls host options. Because the name is passed to c-ares as a C string, resolving attacker.example\0.trusted.example queries attacker.example and returns its records without any error. Applications that validate a hostname, for example against a domain allowlist, and then resolve it with dns.resolve*() can act on records for a different name than the one they validated. This vulnerability affects Node.js 26.x, 24.x, and 22.x.

    References: https://nodejs.org/en/blog/vulnerability/october-2026-security-releases, https://nvd.nist.gov/vuln/detail/CVE-2026-105482

    Affected packages

    Package

    Name: node

    Purl: pkg:bitnami/node

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -22.23.4

    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-node-2026-105482 | CVE-DB