CVE-2021-22884

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 32%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to DNS rebinding attacks as the whitelist includes “localhost6”. When “localhost6” is not present in /etc/hosts, it is just an ordinary domain that is resolved via DNS, i.e., over network. If the attacker controls the victim's DNS server or can spoof its responses, the DNS rebinding protection can be bypassed by using the “localhost6” domain. As long as the attacker uses the “localhost6” domain, they can still apply the attack described in CVE-2018-7160.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
98.1%
KEV
Not listed

Published

March 3, 2021

Last Modified

November 21, 2024

References (24)

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntunodejs-doc (8.10.0~dfsg-2ubuntu0.4+esm3) @ bionic2026-05-26ubuntu
redhatrh-nodejs12-nodejs-0:12.21.0-1.el72021-03-15redhat
redhatrh-nodejs14-nodejs-0:14.16.0-1.el72021-03-15redhat
redhatrh-nodejs10-nodejs-0:10.24.0-1.el72021-03-15redhat
redhatnodejs:12-8020020210302112530.4cda2c842021-03-08redhat
redhatnodejs:12-8010020210302113522.c27ad7f82021-03-08redhat
redhatnodejs:14-8030020210301172147.229f0a1c2021-03-08redhat
redhatnodejs:10-8010020210225115101.c27ad7f82021-03-08redhat
redhatnodejs:10-8020020210225153906.4cda2c842021-03-08redhat
redhatnodejs:10-8030020210225164533.229f0a1c2021-03-04redhat
redhatnodejs:12-8030020210302104621.229f0a1c2021-03-04redhat

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.

All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 6× in last 7d / 35× 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.

  1. 2026-07-11 08:25 UTCEPSS rescore
  2. 2026-07-09 19:07 UTCEPSS rescore
  3. 2026-07-08 15:12 UTCEPSS rescore
  4. 2026-07-07 13:43 UTCEPSS rescore
  5. 2026-07-06 02:21 UTCEPSS rescore
  6. 2026-07-06 02:21 UTCEPSS rescore
  7. 2026-07-02 16:57 UTCEPSS rescore
  8. 2026-07-01 15:03 UTCEPSS rescore
  9. 2026-07-01 07:48 UTCOSV refresh
  10. 2026-06-30 23:20 UTCEPSS rescore
  11. 2026-06-30 23:20 UTCEPSS rescore
  12. 2026-06-28 04:54 UTCEPSS rescore
  13. 2026-06-28 04:54 UTCEPSS rescore
  14. 2026-06-27 03:06 UTCEPSS rescore
  15. 2026-06-27 03:06 UTCEPSS rescore
  16. 2026-06-25 13:48 UTCEPSS rescore
  17. 2026-06-25 13:48 UTCEPSS rescore
  18. 2026-06-24 14:03 UTCEPSS rescore
  19. 2026-06-24 14:03 UTCEPSS rescore
  20. 2026-06-23 21:31 UTCEPSS rescore
  21. 2026-06-23 21:31 UTCEPSS rescore
  22. 2026-06-22 14:24 UTCEPSS rescore
  23. 2026-06-22 14:23 UTCEPSS rescore
  24. 2026-06-21 01:58 UTCEPSS rescore
  25. 2026-06-21 01:57 UTCEPSS rescore
Show 48 more
  1. 2026-06-18 17:51 UTCEPSS rescore
  2. 2026-06-18 17:51 UTCEPSS rescore
  3. 2026-06-17 17:51 UTCEPSS rescore
  4. 2026-06-16 17:50 UTCEPSS rescore
  5. 2026-06-15 17:46 UTCEPSS rescore
  6. 2026-06-14 23:15 UTCEPSS rescore
  7. 2026-06-13 22:58 UTCEPSS rescore
  8. 2026-06-13 12:43 UTCOSV refresh
  9. 2026-06-12 23:10 UTCEPSS rescore
  10. 2026-06-12 23:10 UTCEPSS rescore
  11. 2026-06-11 13:58 UTCEPSS rescore
  12. 2026-06-10 22:16 UTCEPSS rescore
  13. 2026-06-10 22:16 UTCEPSS rescore
  14. 2026-06-10 13:20 UTCEPSS rescore
  15. 2026-06-08 14:15 UTCEPSS rescore
  16. 2026-06-08 14:15 UTCEPSS rescore
  17. 2026-06-07 15:23 UTCEPSS rescore
  18. 2026-06-07 15:23 UTCEPSS rescore
  19. 2026-06-06 13:46 UTCEPSS rescore
  20. 2026-06-06 13:46 UTCEPSS rescore
  21. 2026-06-06 13:46 UTCEPSS rescore
  22. 2026-06-05 22:45 UTCEPSS rescore
  23. 2026-06-05 22:45 UTCEPSS rescore
  24. 2026-06-05 06:09 UTCEPSS rescore
  25. 2026-06-05 06:09 UTCEPSS rescore
  26. 2026-06-05 06:08 UTCEPSS rescore
  27. 2026-06-04 13:10 UTCEPSS rescore
  28. 2026-06-02 20:11 UTCEPSS rescore
  29. 2026-06-02 20:11 UTCEPSS rescore
  30. 2026-06-01 13:50 UTCEPSS rescore
  31. 2026-06-01 13:50 UTCEPSS rescore
  32. 2026-05-31 22:29 UTCEPSS rescore
  33. 2026-05-31 22:29 UTCEPSS rescore
  34. 2026-05-31 00:15 UTCEPSS rescore
  35. 2026-05-31 00:15 UTCEPSS rescore
  36. 2026-05-29 13:42 UTCEPSS rescore
  37. 2026-05-28 13:43 UTCEPSS rescore
  38. 2026-05-28 13:43 UTCEPSS rescore
  39. 2026-05-27 13:39 UTCEPSS rescore
  40. 2026-05-26 20:12 UTCEG score recompute
  41. 2026-05-26 20:12 UTCVendor advisory
  42. 2026-05-26 20:12 UTCGHSA enrichment
  43. 2026-05-26 13:42 UTCEPSS rescore
  44. 2026-05-26 13:42 UTCEPSS rescore
  45. 2026-05-26 07:17 UTCEPSS rescore
  46. 2026-05-26 07:17 UTCEPSS rescore
  47. 2026-05-24 16:49 UTCEPSS rescore
  48. 2026-05-23 09:01 UTCOSV refresh

Frequently asked(5)

What is CVE-2021-22884?
CVE-2021-22884 is a high vulnerability published on March 3, 2021. Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to DNS rebinding attacks as the whitelist includes “localhost6”. When “localhost6” is not present in /etc/hosts, it is just an ordinary domain that is resolved via DNS, i.e., over network. If the attacker controls the victim's DNS…
When was CVE-2021-22884 disclosed?
CVE-2021-22884 was first published in the National Vulnerability Database on March 3, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-22884 actively exploited?
CVE-2021-22884 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-22884?
CVE-2021-22884 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-22884?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-22884, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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