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CVE-2026-106072

CVE-2026-106072

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

A flaw in Node.js TLS hostname verification allows a certificate with only a DNS SAN to authenticate an IP endpoint when the client connects using a non-canonical IPv4 spelling, such as `0177.0.0.1`, `0x7f.0.0.1`, `2130706433` or `127.1`. `tls.checkServerIdentity()` did not classify these hosts as IP addresses, but normalized them to their canonical form and matched the result against the certificate DNS names. A certificate containing `DNS:127.0.0.1` and no `IP Address:127.0.0.1` SAN was therefore accepted, while the same certificate is correctly rejected for `127.0.0.1`. Exploitation requires a certificate with a numeric DNS SAN issued by a CA trusted by the client, and a platform resolver that accepts these spellings, such as glibc. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

CVSS 6.7 · Medium · 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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