Vulnerability in Node.js (CVE-2026-58042)
Summary
Vulnerability in Node.js (CVE-2026-58042). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A Records.
Repeated triggering of this condition can lead to denial of service.
This vulnerability affects Node.js 26.x, 24.x, and 22.x.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-58042 has been found in Node.js.
Risk of unauthorized operations or information disclosure. CVSS score: 5.9/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Node.js CVE-2026-58042" on the vendor's site.
CVE-2026-58042 (Node.js) — CWE-400 / CVSS v3 5.9
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-400) exists in Node.js.
Check the vendor advisory for the affected versions of Node.js.
Severity: Medium (CVSS 5.9/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Node.js' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'Node.js' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
Node.jsを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2026-58042 nodejs Fixed in: 22.23.2-r0
- BellSoft Alpaquita BELL-CVE-2026-58042 nodejs Fixed in: 22.23.2-r0
- Debian DEBIAN-CVE-2026-58042 nodejs Fixed in: 18.20.4+dfsg-1~deb12u3
- Ubuntu UBUNTU-CVE-2026-58042 nodejs
References
- web nodejs.org
- web nvd.nist.gov
- web github.com