Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to Remote Code Execution, XSS, Application crashes due to missing input validation of host names returned by Domain Name Servers in Node.js dns library which can lead to output of wrong hostnames (leading to Domain Hijacking) and injection vulnerabilities in applications using the library.
CVE-2021-22931
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 97.4%
- KEV
- Not listed
Published
August 16, 2021
Last Modified
November 21, 2024
Advisory Details (5)
Auto-updated Jun 20, 2026c-ares: Multiple Vulnerabilities (GLSA 202401-02) — Gentoo security
https://security.gentoo.org/glsa/202401-02Node.js — August 2021 Security Releases
https://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/Vendor Advisories for CVE-2021-22931(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | nodejs:14-8040020210817165654.522a0ee4 | 2021-09-27 | redhat |
| redhat | nodejs:12-8010020210817113128.c27ad7f8 | 2021-09-22 | redhat |
| redhat | nodejs:12-8020020210817125332.4cda2c84 | 2021-09-22 | redhat |
| redhat | nodejs:12-8040020210817133458.522a0ee4 | 2021-09-21 | redhat |
| redhat | rh-nodejs14-nodejs-0:14.17.5-1.el7 | 2021-08-26 | redhat |
| redhat | rh-nodejs12-nodejs-nodemon-0:2.0.3-5.el7 | 2021-08-26 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(5)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2021-229312021-08-25
Node.js before 16.6.0 14.17.4 and 12.22.4 is vulnerable to Remote Code Execution XSS Application crashes due to missing input validation of host names returned by Domain Name Servers in Node.js dns library which can lead to output of wrong hostnames (leading to Domain Hijacking) and injection vulnerabilities in applications using the library.
- Red HatRHSA-2021:3623MODERATE2021-08-11
RHSA-2021:3623 — Moderate
- Red HatRHSA-2021:3638MODERATE2021-08-11
RHSA-2021:3638 — Moderate
- Red HatRHSA-2021:3639MODERATE2021-08-11
RHSA-2021:3639 — Moderate
- Red HatRHSA-2021:3666MODERATE2021-08-11
RHSA-2021:3666 — Moderate
Data Freshness Timeline
(refreshed 9× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-21 15:22 UTCEPSS rescore
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- 2026-07-13 03:38 UTCOSV refresh
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- 2026-07-02 16:57 UTCEPSS rescore
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- 2026-06-24 14:03 UTCEPSS rescore
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- 2026-06-24 13:32 UTCOSV refresh
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- 2026-06-07 17:46 UTCOSV refresh
- 2026-06-07 15:23 UTCEPSS rescore
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- 2026-05-24 16:49 UTCEPSS rescore
- 2026-05-23 08:20 UTCEG score recompute
- 2026-05-23 08:20 UTCVendor advisory
- 2026-05-23 08:20 UTCGHSA enrichment
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Frequently asked(5)
What is CVE-2021-22931?
When was CVE-2021-22931 disclosed?
Is CVE-2021-22931 actively exploited?
What is the CVSS score of CVE-2021-22931?
How do I remediate CVE-2021-22931?
Dependency Blast Radius
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