Improper Neutralization of Null Byte or NUL Character Affecting nodejs/node package, versions [22.0.0, 22.23.4)[24.0.0, 24.22.1)[26.0.0, 26.12.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-NODEJSNODE-21427253
- published22 Oct 2026
- disclosed21 Oct 2026
- credithasanfleyah
Introduced: 21 Oct 2026
NewCVE-2026-105482 (opens in a new tab)How to fix?
Upgrade nodejs/node to version 22.23.4, 24.22.1, 26.12.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Neutralization of Null Byte or NUL Character via the callback- and promise-based dns.resolve APIs in lib/internal/dns/callback_resolver.js and lib/internal/dns/promises.js. An attacker can make an application resolve an unintended hostname by supplying a name containing an embedded NUL; c-ares treats the name as a C string, so example.com\0.trusted.corp is truncated to example.com, and the resolver returns records for that hostname.