Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 conver… (CVE-2021-44532)

Summary

Vulnerability reported (CVE-2021-44532). Risk of unauthorized operations or information disclosure.

Original description

The description as published by the source.

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the --security-revert command-line option.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

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-2021-44532 has been found.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2021-44532" on the vendor's site.

CVE-2021-44532
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.

❓ What is the problem

A vulnerability (unclassified) has been reported.

📍 Affected scope

Check the vendor advisory for the affected versions.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposure identify
```
Audit SBOM/dependencies for affected components.
```
資産台帳・SBOM・依存マニフェストで影響コンポーネントを特定する。
2
Post-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

Bitnami node-min

[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"12.22.9"},{"introduced":"14.0.0"},{"fixed":"14.18.3"},{"introduced":"16.0.0"},{"fixed":"16.13.2"},{"introduced":"17.0.0"},{"fixed":"17.3.1"}]}]

Bitnami node

[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"12.22.9"},{"introduced":"14.0.0"},{"fixed":"14.18.3"},{"introduced":"16.0.0"},{"fixed":"16.13.2"},{"introduced":"17.0.0"},{"fixed":"17.3.1"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

Alpine Linux ALPINE-CVE-2021-44532 nodejs Fixed in: 12.22.10-r0
Debian DEBIAN-CVE-2021-44532 nodejs Fixed in: 12.22.9~dfsg-1

References

advisory hackerone.com
advisory security.netapp.com
advisory debian.org
advisory oracle.com
advisory oracle.com
advisory nodejs.org
web nvd.nist.gov