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CVE-2026-105482

CVE-2026-105482

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.4 · High · Public exploit

Published
Updated

Stack: system · node

Affected products and versions

  • node.js

    Versions
    • ≥ 22.23.3, ≤ 22.23.3: Affected (semver)
    • ≥ 24.22.0, ≤ 24.22.0: Affected (semver)
    • ≥ 26.12.0, ≤ 26.12.0: Affected (semver)

    No fix published

  • nodejs Debian:12

    Versions
    • 18.13.0+dfsg1-1
    • 18.13.0+dfsg1-1.1
    • 18.19.0+dfsg-1
    • 18.19.0+dfsg-2
    • 18.19.0+dfsg-3
    • 18.19.0+dfsg-4
    • 18.19.0+dfsg-5
    • 18.19.0+dfsg-6
    • 18.19.0+dfsg-6~deb12u1
    • 18.19.0+dfsg-6~deb12u2
    • 18.19.1+dfsg-1
    • 18.19.1+dfsg-2
    • 18.19.1+dfsg-3
    • 18.19.1+dfsg-3.1
    • 18.19.1+dfsg-4
    • 18.19.1+dfsg-6
    • 18.20.1+dfsg-1
    • 18.20.1+dfsg-2
    • 18.20.1+dfsg-3
    • 18.20.1+dfsg-4
    • 18.20.4+dfsg-1~deb12u1
    • 18.20.4+dfsg-1~deb12u2
    • 18.20.4+dfsg-1~deb12u3
    • 20.10.0+dfsg-1
    • 20.12.2+dfsg-1
    • 20.13.0+dfsg-1
    • 20.13.1+dfsg-1
    • 20.13.1+dfsg-2
    • 20.14.0+dfsg-1
    • 20.14.0+dfsg-2
    • 20.14.0+dfsg-3
    • 20.15.0+dfsg-1
    • 20.15.1+dfsg-1
    • 20.16.0+dfsg-1
    • 20.17.0+dfsg-1
    • 20.17.0+dfsg-2
    • 20.18.0+dfsg-1
    • 20.18.0+dfsg-2
    • 20.18.1+dfsg-1
    • 20.18.1+dfsg-2
    • 20.18.2+dfsg-1
    • 20.18.2+dfsg-2
    • 20.18.2+dfsg-3
    • 20.18.2+dfsg-4
    • 20.18.3+dfsg-1
    • 20.19.0+dfsg-1
    • 20.19.0+dfsg-2
    • 20.19.0+dfsg1-1
    • 20.19.2+dfsg-1
    • 20.19.4+dfsg-1
    • 20.19.5+dfsg+~cs20.19.12-1
    • 20.19.5+dfsg+~cs20.19.12-2
    • 20.19.5+dfsg+~cs20.19.12-3
    • 20.19.5+dfsg+~cs20.19.12-4
    • 20.19.5+dfsg+~cs20.19.24-1
    • 22.12.0+dfsg-1
    • 22.12.0+dfsg-2
    • 22.12.0+dfsg-3
    • 22.14.0+dfsg-1
    • 22.18.0+dfsg+~cs22.17.2-1
    • 22.18.0+dfsg+~cs22.17.2-2
    • 22.18.0+dfsg-1
    • 22.19.0+dfsg+~cs22.18.0-1
    • 22.21.1+dfsg+~cs22.19.0-1
    • 22.21.1+dfsg+~cs22.19.0-2
    • 22.21.1+dfsg+~cs22.19.0-3
    • 22.21.1+dfsg+~cs22.19.0-4
    • 22.21.1+dfsg+~cs22.19.0-5
    • 22.21.1+dfsg+~cs22.19.0-6
    • 22.22.0+dfsg+~cs22.19.13-1
    • 22.22.0+dfsg+~cs22.19.13-2
    • 22.22.0+dfsg+~cs22.19.6-1
    • 22.22.1+dfsg+~cs22.19.15-1
    • 22.22.2+dfsg+~cs22.19.15-1
    • 22.22.2+dfsg+~cs22.19.15-3
    • 24.11.1+dfsg+~cs24.10.1-1
    • 24.11.1+dfsg+~cs24.10.1-2
    • 24.12.0+dfsg+~cs24.10.4-1
    • 24.13.0+dfsg+~cs24.10.7-1
    • 24.13.0+dfsg+~cs24.10.7-2
    • 24.14.0+dfsg+~cs24.12.0-1
    • 24.14.0+dfsg+~cs24.12.0-2
    • 24.14.1+dfsg+~cs24.12.0-1
    • 24.15.0+dfsg+~cs24.12.2-1
    • 24.16.0+dfsg+~cs24.13.1-1
    • 24.16.0+dfsg+~cs24.13.1-2
    • 24.17.0+dfsg+~cs24.13.2-1
    • 24.18.0+dfsg+~cs24.13.2-1
    • 24.19.0+dfsg+~cs24.13.3-1
    • 24.20.0+dfsg+~cs24.13.3-1
    • 24.20.0+dfsg+~cs24.13.3-2
    • 24.21.0+dfsg+~cs24.13.4-1
    • 24.22.0+dfsg+~cs24.19.2-1
    • 24.22.0+dfsg+~cs24.19.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Debian:13

    Versions
    • 20.19.2+dfsg-1
    • 20.19.2+dfsg-1+deb13u1
    • 20.19.2+dfsg-1+deb13u2
    • 20.19.2+dfsg-1+deb13u3
    • 20.19.4+dfsg-1
    • 20.19.5+dfsg+~cs20.19.12-1
    • 20.19.5+dfsg+~cs20.19.12-2
    • 20.19.5+dfsg+~cs20.19.12-3
    • 20.19.5+dfsg+~cs20.19.12-4
    • 20.19.5+dfsg+~cs20.19.24-1
    • 22.12.0+dfsg-1
    • 22.12.0+dfsg-2
    • 22.12.0+dfsg-3
    • 22.14.0+dfsg-1
    • 22.18.0+dfsg+~cs22.17.2-1
    • 22.18.0+dfsg+~cs22.17.2-2
    • 22.18.0+dfsg-1
    • 22.19.0+dfsg+~cs22.18.0-1
    • 22.21.1+dfsg+~cs22.19.0-1
    • 22.21.1+dfsg+~cs22.19.0-2
    • 22.21.1+dfsg+~cs22.19.0-3
    • 22.21.1+dfsg+~cs22.19.0-4
    • 22.21.1+dfsg+~cs22.19.0-5
    • 22.21.1+dfsg+~cs22.19.0-6
    • 22.22.0+dfsg+~cs22.19.13-1
    • 22.22.0+dfsg+~cs22.19.13-2
    • 22.22.0+dfsg+~cs22.19.6-1
    • 22.22.1+dfsg+~cs22.19.15-1
    • 22.22.2+dfsg+~cs22.19.15-1
    • 22.22.2+dfsg+~cs22.19.15-3
    • 24.11.1+dfsg+~cs24.10.1-1
    • 24.11.1+dfsg+~cs24.10.1-2
    • 24.12.0+dfsg+~cs24.10.4-1
    • 24.13.0+dfsg+~cs24.10.7-1
    • 24.13.0+dfsg+~cs24.10.7-2
    • 24.14.0+dfsg+~cs24.12.0-1
    • 24.14.0+dfsg+~cs24.12.0-2
    • 24.14.1+dfsg+~cs24.12.0-1
    • 24.15.0+dfsg+~cs24.12.2-1
    • 24.16.0+dfsg+~cs24.13.1-1
    • 24.16.0+dfsg+~cs24.13.1-2
    • 24.17.0+dfsg+~cs24.13.2-1
    • 24.18.0+dfsg+~cs24.13.2-1
    • 24.19.0+dfsg+~cs24.13.3-1
    • 24.20.0+dfsg+~cs24.13.3-1
    • 24.20.0+dfsg+~cs24.13.3-2
    • 24.21.0+dfsg+~cs24.13.4-1
    • 24.22.0+dfsg+~cs24.19.2-1
    • 24.22.0+dfsg+~cs24.19.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Debian:14

    Versions
    • 20.19.2+dfsg-1
    • 20.19.4+dfsg-1
    • 20.19.5+dfsg+~cs20.19.12-1
    • 20.19.5+dfsg+~cs20.19.12-2
    • 20.19.5+dfsg+~cs20.19.12-3
    • 20.19.5+dfsg+~cs20.19.12-4
    • 20.19.5+dfsg+~cs20.19.24-1
    • 22.12.0+dfsg-1
    • 22.12.0+dfsg-2
    • 22.12.0+dfsg-3
    • 22.14.0+dfsg-1
    • 22.18.0+dfsg+~cs22.17.2-1
    • 22.18.0+dfsg+~cs22.17.2-2
    • 22.18.0+dfsg-1
    • 22.19.0+dfsg+~cs22.18.0-1
    • 22.21.1+dfsg+~cs22.19.0-1
    • 22.21.1+dfsg+~cs22.19.0-2
    • 22.21.1+dfsg+~cs22.19.0-3
    • 22.21.1+dfsg+~cs22.19.0-4
    • 22.21.1+dfsg+~cs22.19.0-5
    • 22.21.1+dfsg+~cs22.19.0-6
    • 22.22.0+dfsg+~cs22.19.13-1
    • 22.22.0+dfsg+~cs22.19.13-2
    • 22.22.0+dfsg+~cs22.19.6-1
    • 22.22.1+dfsg+~cs22.19.15-1
    • 22.22.2+dfsg+~cs22.19.15-1
    • 22.22.2+dfsg+~cs22.19.15-3
    • 24.11.1+dfsg+~cs24.10.1-1
    • 24.11.1+dfsg+~cs24.10.1-2
    • 24.12.0+dfsg+~cs24.10.4-1
    • 24.13.0+dfsg+~cs24.10.7-1
    • 24.13.0+dfsg+~cs24.10.7-2
    • 24.14.0+dfsg+~cs24.12.0-1
    • 24.14.0+dfsg+~cs24.12.0-2
    • 24.14.1+dfsg+~cs24.12.0-1
    • 24.15.0+dfsg+~cs24.12.2-1
    • 24.16.0+dfsg+~cs24.13.1-1
    • 24.16.0+dfsg+~cs24.13.1-2
    • 24.17.0+dfsg+~cs24.13.2-1
    • 24.18.0+dfsg+~cs24.13.2-1
    • 24.19.0+dfsg+~cs24.13.3-1
    • 24.20.0+dfsg+~cs24.13.3-1
    • 24.20.0+dfsg+~cs24.13.3-2
    • 24.21.0+dfsg+~cs24.13.4-1
    • 24.22.0+dfsg+~cs24.19.2-1
    • 24.22.0+dfsg+~cs24.19.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Ubuntu:Pro:14.04:LTS

    Versions
    • 0.10.15~dfsg1-4
    • 0.10.21~dfsg1-1
    • 0.10.22~dfsg1-2
    • 0.10.23~dfsg1-1
    • 0.10.23~dfsg1-2
    • 0.10.23~dfsg1-3
    • 0.10.24~dfsg1-1
    • 0.10.25~dfsg2-2
    • 0.10.25~dfsg2-2ubuntu1
    • 0.10.25~dfsg2-2ubuntu1.2
    • 0.10.25~dfsg2-2ubuntu1.2+esm1
    • 0.10.25~dfsg2-2ubuntu1.2+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Ubuntu:Pro:16.04:LTS

    Versions
    • 0.10.25~dfsg2-2ubuntu1
    • 4.2.2~dfsg-1
    • 4.2.3~dfsg-1
    • 4.2.4~dfsg-1ubuntu1
    • 4.2.4~dfsg-2
    • 4.2.6~dfsg-1ubuntu1
    • 4.2.6~dfsg-1ubuntu4
    • 4.2.6~dfsg-1ubuntu4.1
    • 4.2.6~dfsg-1ubuntu4.2
    • 4.2.6~dfsg-1ubuntu4.2+esm1
    • 4.2.6~dfsg-1ubuntu4.2+esm2
    • 4.2.6~dfsg-1ubuntu4.2+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Ubuntu:Pro:18.04:LTS

    Versions
    • 6.11.4~dfsg-1ubuntu1
    • 6.11.4~dfsg-1ubuntu2
    • 6.12.0~dfsg-1ubuntu1
    • 6.12.0~dfsg-2ubuntu1
    • 6.12.0~dfsg-2ubuntu2
    • 8.10.0~dfsg-2
    • 8.10.0~dfsg-2ubuntu0.2
    • 8.10.0~dfsg-2ubuntu0.3
    • 8.10.0~dfsg-2ubuntu0.4
    • 8.10.0~dfsg-2ubuntu0.4+esm1
    • 8.10.0~dfsg-2ubuntu0.4+esm2
    • 8.10.0~dfsg-2ubuntu0.4+esm3
    • 8.10.0~dfsg-2ubuntu0.4+esm4
    • 8.10.0~dfsg-2ubuntu0.4+esm5
    • 8.10.0~dfsg-2ubuntu0.4+esm6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Ubuntu:Pro:20.04:LTS

    Versions
    • 10.15.2~dfsg-2ubuntu1
    • 10.17.0~dfsg-2ubuntu4
    • 10.17.0~dfsg-2ubuntu6
    • 10.19.0~dfsg-3ubuntu1
    • 10.19.0~dfsg-3ubuntu1.1
    • 10.19.0~dfsg-3ubuntu1.2
    • 10.19.0~dfsg-3ubuntu1.3
    • 10.19.0~dfsg-3ubuntu1.5
    • 10.19.0~dfsg-3ubuntu1.6
    • 10.19.0~dfsg-3ubuntu1.6+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Ubuntu:Pro:22.04:LTS

    Versions
    • 12.22.5~dfsg-5ubuntu1
    • 12.22.7~dfsg-2ubuntu1
    • 12.22.7~dfsg-2ubuntu3
    • 12.22.9~dfsg-1ubuntu2
    • 12.22.9~dfsg-1ubuntu3
    • 12.22.9~dfsg-1ubuntu3.1
    • 12.22.9~dfsg-1ubuntu3.2
    • 12.22.9~dfsg-1ubuntu3.3
    • 12.22.9~dfsg-1ubuntu3.4
    • 12.22.9~dfsg-1ubuntu3.5
    • 12.22.9~dfsg-1ubuntu3.6
    • 12.22.9~dfsg-1ubuntu3.6+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Ubuntu:24.04:LTS

    Versions
    • 18.13.0+dfsg1-1ubuntu2
    • 18.19.1+dfsg-2ubuntu4
    • 18.19.1+dfsg-6ubuntu1
    • 18.19.1+dfsg-6ubuntu2
    • 18.19.1+dfsg-6ubuntu5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Ubuntu:26.10

    Versions
    • 22.22.1+dfsg+~cs22.19.15-1ubuntu1
    • 24.16.0+dfsg+~cs24.13.1-2ubuntu1
    • 24.18.0+dfsg+~cs24.13.2-1ubuntu1
    • 24.19.0+dfsg+~cs24.13.3-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • nodejs Ubuntu:26.04:LTS

    Versions
    • 20.19.4+dfsg-1
    • 20.19.5+dfsg+~cs20.19.12-4
    • 22.21.1+dfsg+~cs22.19.0-6ubuntu4
    • 22.22.0+dfsg+~cs22.19.6-1ubuntu2
    • 22.22.0+dfsg+~cs22.19.13-2ubuntu1
    • 22.22.1+dfsg+~cs22.19.15-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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