CVE-2026-105482
nodejs node
HIGH 7.4
At a glance
- Source
- NVD
- EPSS
- EPSS 0.42 % · percentile 37 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- hackerone
- NVD status
- Awaiting Analysis
Description
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.
Weaknesses (CWE)
- CWE-284 — Improper Access Control
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.4 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | hackerone |
| CVSS 3.0 | HIGH 7.4 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · support@hackerone.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-109105
- GCVE · GCVE-0-2026-105482
Affected products
| Product | Versions |
|---|---|
| nodejs · node | affected 22.23.3 ≤ 22.23.3 ; affected 24.22.0 ≤ 24.22.0 ; affected 26.12.0 ≤ 26.12.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |