CVE-2026-47674

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 84% 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: cna:github_m, epss
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

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

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6 representations of an address already listed in a static rule — such as compressed forms, explicit-zero forms, or hex-notation IPv4-mapped addresses — do not match the normalized rule entry, causing the rule to be silently skipped. This vulnerability is fixed in 4.12.21.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
15.5%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 2, 2026

Advisory Details (1)

Auto-updated Jun 13, 2026
Patch available. Sources: github.
github Patch Available

IP Restriction bypasses static deny rules for non-canonical IPv6 · Advisory · honojs/hono · GitHub

https://github.com/honojs/hono/security/advisories/GHSA-xrhx-7g5j-rcj5

Vendor Advisories for CVE-2026-47674(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
hono—4.12.21—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 50× 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. 2026-07-16 02:55 UTCEG score recompute
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
  4. 2026-07-13 22:30 UTCEPSS rescore
  5. 2026-07-13 06:13 UTCEPSS rescore
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-11 19:52 UTCEG score recompute
  8. 2026-07-11 08:27 UTCEPSS rescore
  9. 2026-07-09 19:10 UTCEPSS rescore
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  11. 2026-07-08 15:16 UTCEPSS rescore
  12. 2026-07-07 13:46 UTCEPSS rescore
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  14. 2026-07-06 02:23 UTCEPSS rescore
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  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-02 14:10 UTCEG score recompute
  18. 2026-07-01 15:07 UTCEPSS rescore
  19. 2026-07-01 03:12 UTCEG score recompute
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 01:48 UTCEG score recompute
  22. 2026-06-29 14:06 UTCEPSS rescore
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  24. 2026-06-28 22:15 UTCEG score recompute
  25. 2026-06-28 14:07 UTCEPSS rescore
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  1. 2026-06-28 04:56 UTCEPSS rescore
  2. 2026-06-28 04:56 UTCEPSS rescore
  3. 2026-06-27 20:51 UTCEG score recompute
  4. 2026-06-27 03:08 UTCEPSS rescore
  5. 2026-06-26 19:28 UTCEG score recompute
  6. 2026-06-25 18:04 UTCEG score recompute
  7. 2026-06-25 13:49 UTCEPSS rescore
  8. 2026-06-24 16:39 UTCEG score recompute
  9. 2026-06-24 14:05 UTCEPSS rescore
  10. 2026-06-23 21:33 UTCEPSS rescore
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  14. 2026-06-21 14:56 UTCEPSS rescore
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  16. 2026-06-21 01:59 UTCEPSS rescore
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  18. 2026-06-19 19:26 UTCEPSS rescore
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  20. 2026-06-18 17:52 UTCEPSS rescore
  21. 2026-06-18 17:52 UTCEPSS rescore
  22. 2026-06-18 01:26 UTCEG score recompute
  23. 2026-06-17 17:53 UTCEPSS rescore
  24. 2026-06-16 23:43 UTCEG score recompute
  25. 2026-06-16 17:53 UTCEPSS rescore
  26. 2026-06-15 22:19 UTCEG score recompute
  27. 2026-06-15 17:49 UTCEPSS rescore
  28. 2026-06-15 17:49 UTCEPSS rescore
  29. 2026-06-14 23:18 UTCEPSS rescore
  30. 2026-06-14 20:54 UTCEG score recompute
  31. 2026-06-13 23:00 UTCEPSS rescore
  32. 2026-06-13 19:31 UTCEG score recompute
  33. 2026-06-12 23:12 UTCEPSS rescore
  34. 2026-06-12 23:12 UTCEPSS rescore
  35. 2026-06-12 16:27 UTCEG score recompute
  36. 2026-06-11 15:04 UTCEG score recompute
  37. 2026-06-11 14:00 UTCEPSS rescore
  38. 2026-06-10 22:18 UTCEPSS rescore
  39. 2026-06-10 13:40 UTCEG score recompute
  40. 2026-06-10 13:22 UTCEPSS rescore
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  42. 2026-06-09 12:16 UTCEG score recompute
  43. 2026-06-08 14:17 UTCEPSS rescore
  44. 2026-06-08 14:17 UTCEPSS rescore
  45. 2026-06-08 10:52 UTCEG score recompute
  46. 2026-06-07 15:25 UTCEPSS rescore
  47. 2026-06-07 15:25 UTCEPSS rescore
  48. 2026-06-07 09:28 UTCEG score recompute
  49. 2026-06-06 13:47 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
  51. 2026-06-06 08:05 UTCEG score recompute
  52. 2026-06-05 22:47 UTCEPSS rescore
  53. 2026-06-05 06:41 UTCEG score recompute
  54. 2026-06-05 06:10 UTCEPSS rescore
  55. 2026-06-05 06:10 UTCEPSS rescore
  56. 2026-06-04 13:12 UTCEPSS rescore
  57. 2026-06-04 13:12 UTCEPSS rescore
  58. 2026-06-04 05:18 UTCEG score recompute
  59. 2026-06-03 03:54 UTCEG score recompute
  60. 2026-06-02 20:13 UTCEPSS rescore
  61. 2026-06-02 02:30 UTCEG score recompute
  62. 2026-06-01 13:52 UTCEPSS rescore
  63. 2026-06-01 13:52 UTCEPSS rescore
  64. 2026-06-01 01:06 UTCEG score recompute
  65. 2026-05-31 22:30 UTCEPSS rescore
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  67. 2026-05-31 00:16 UTCEPSS rescore
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  69. 2026-05-29 13:44 UTCEPSS rescore
  70. 2026-05-29 13:44 UTCEPSS rescore
  71. 2026-05-28 16:49 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-47674?
CVE-2026-47674 is a medium vulnerability published on May 28, 2026. Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6…
When was CVE-2026-47674 disclosed?
CVE-2026-47674 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47674 actively exploited?
CVE-2026-47674 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-47674?
CVE-2026-47674 has a CVSS v4.0 base score of 5.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-47674?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47674, 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

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