CVE-2026-53721

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 79% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.2Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.

CVSS v3
8.2
EG Score
8.2(medium)
EPSS
21.2%
KEV
Not listed

Published

June 12, 2026

Last Modified

June 15, 2026

Advisory Details (3)

Auto-updated Jun 12, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher · Advisory · nuxt/nuxt · GitHub

https://github.com/nuxt/nuxt/security/advisories/GHSA-mm7m-92g8-7m47
github_commit

commit 3f3e3fa7b5ee (nuxt/nuxt)

Fix landed in nuxt/nuxt commit 3f3e3fa7b5ee — awaiting tagged release

https://github.com/nuxt/nuxt/commit/3f3e3fa7b5eec8e495f4f8ce0a54813a8875a11e
github_commit

commit 07e39cd6f26e (nuxt/nuxt)

Fix landed in nuxt/nuxt commit 07e39cd6f26e — awaiting tagged release

https://github.com/nuxt/nuxt/commit/07e39cd6f26e407b4192b7865bd17bc44536b9bb

Vendor Advisories for CVE-2026-53721(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
nuxt—3.21.7—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 22× in last 7d / 87× 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. 2026-07-07 01:15 UTCEG score recompute
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 21:54 UTCEG score recompute
  7. 2026-07-05 10:47 UTCEG score recompute
  8. 2026-07-05 02:31 UTCEPSS rescore
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-04 22:06 UTCEG score recompute
  11. 2026-07-04 11:00 UTCEG score recompute
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-03 14:37 UTCEG score recompute
  15. 2026-07-03 01:11 UTCEG score recompute
  16. 2026-07-02 14:04 UTCEG score recompute
  17. 2026-07-02 02:57 UTCEG score recompute
  18. 2026-07-01 15:51 UTCEG score recompute
  19. 2026-07-01 15:07 UTCEPSS rescore
  20. 2026-07-01 04:44 UTCEG score recompute
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-30 17:35 UTCEG score recompute
  23. 2026-06-30 05:55 UTCEG score recompute
  24. 2026-06-29 18:49 UTCEG score recompute
  25. 2026-06-29 06:49 UTCEG score recompute
Show 62 more
  1. 2026-06-28 19:43 UTCEG score recompute
  2. 2026-06-28 14:07 UTCEPSS rescore
  3. 2026-06-28 08:36 UTCEG score recompute
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-27 21:30 UTCEG score recompute
  7. 2026-06-27 10:23 UTCEG score recompute
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-26 23:16 UTCEG score recompute
  10. 2026-06-26 12:06 UTCEG score recompute
  11. 2026-06-25 22:46 UTCEG score recompute
  12. 2026-06-25 13:49 UTCEPSS rescore
  13. 2026-06-25 11:39 UTCEG score recompute
  14. 2026-06-25 00:33 UTCEG score recompute
  15. 2026-06-24 14:05 UTCEPSS rescore
  16. 2026-06-24 13:26 UTCEG score recompute
  17. 2026-06-24 02:01 UTCEG score recompute
  18. 2026-06-23 21:33 UTCEPSS rescore
  19. 2026-06-23 21:33 UTCEPSS rescore
  20. 2026-06-23 14:53 UTCEG score recompute
  21. 2026-06-23 02:17 UTCEG score recompute
  22. 2026-06-22 15:11 UTCEG score recompute
  23. 2026-06-22 14:25 UTCEPSS rescore
  24. 2026-06-22 14:25 UTCEPSS rescore
  25. 2026-06-22 03:52 UTCEG score recompute
  26. 2026-06-21 14:56 UTCEPSS rescore
  27. 2026-06-21 14:56 UTCEPSS rescore
  28. 2026-06-21 14:09 UTCEG score recompute
  29. 2026-06-21 02:18 UTCEG score recompute
  30. 2026-06-21 01:59 UTCEPSS rescore
  31. 2026-06-21 01:59 UTCEPSS rescore
  32. 2026-06-20 15:07 UTCEG score recompute
  33. 2026-06-20 03:51 UTCEG score recompute
  34. 2026-06-19 19:26 UTCEPSS rescore
  35. 2026-06-19 19:26 UTCEPSS rescore
  36. 2026-06-19 16:31 UTCEG score recompute
  37. 2026-06-19 05:23 UTCEG score recompute
  38. 2026-06-18 18:16 UTCEG score recompute
  39. 2026-06-18 17:52 UTCEPSS rescore
  40. 2026-06-18 17:52 UTCEPSS rescore
  41. 2026-06-18 07:00 UTCEG score recompute
  42. 2026-06-17 18:31 UTCEG score recompute
  43. 2026-06-17 17:53 UTCEPSS rescore
  44. 2026-06-17 07:25 UTCEG score recompute
  45. 2026-06-16 20:18 UTCEG score recompute
  46. 2026-06-16 17:53 UTCEPSS rescore
  47. 2026-06-16 09:12 UTCEG score recompute
  48. 2026-06-15 22:05 UTCEG score recompute
  49. 2026-06-15 17:49 UTCEPSS rescore
  50. 2026-06-15 17:49 UTCEPSS rescore
  51. 2026-06-15 10:57 UTCEG score recompute▼ 0.60
  52. 2026-06-15 03:24 UTCNVD updateCVSS v3 → 8.2
  53. 2026-06-14 23:47 UTCEG score recompute
  54. 2026-06-14 23:18 UTCEPSS rescore
  55. 2026-06-14 12:40 UTCEG score recompute
  56. 2026-06-14 01:33 UTCEG score recompute
  57. 2026-06-13 23:00 UTCEPSS rescore
  58. 2026-06-13 14:25 UTCEG score recompute
  59. 2026-06-13 03:18 UTCEG score recompute
  60. 2026-06-12 23:12 UTCEPSS rescore
  61. 2026-06-12 16:12 UTCEG score recompute
  62. 2026-06-12 16:12 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-53721?
CVE-2026-53721 is a high vulnerability published on June 12, 2026. Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.
When was CVE-2026-53721 disclosed?
CVE-2026-53721 was first published in the National Vulnerability Database on June 12, 2026, with the most recent update on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53721 actively exploited?
CVE-2026-53721 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53721?
CVE-2026-53721 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-53721?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53721, 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53721

Explore →

Is Your Infrastructure Affected by CVE-2026-53721?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs