CVE-2026-38651

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 73% 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
Elevated
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.

Authentication Bypass vulnerability exists in Netmaker versions prior to 1.5.0. The VerifyHostToken function in logic/jwts.go fails to validate the JWT signature when verifying host tokens. An attacker can forge a JWT signed with any arbitrary key and use it to impersonate any host in the network, gaining access to sensitive information

CVSS v3
8.2
EG Score
8.2(medium)
EPSS
21.7%
KEV
Not listed

Published

April 28, 2026

Last Modified

May 18, 2026

Advisory Details (4)

Auto-updated May 3, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Redirecting...

https://www.zyenra.com/blog/netmaker-jwt-verification-bypass
generic🟡 PoC Available

Zyenra Security

https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass/
generic🟡 PoC Available

Zyenra Security

https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass
generic

NM-258: fix host authrize func, check for token validity · gravitl/netmaker@5309aa7 · GitHub

https://github.com/gravitl/netmaker/commit/5309aa70d464ef565911369714d661a61481a79b

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/gravitl/netmaker—1.5.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 38× 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.

Showing the most recent 100 of 107 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  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
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  7. 2026-07-12 05:46 UTCEPSS rescore
  8. 2026-07-11 08:27 UTCEPSS rescore
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-08 15:15 UTCEPSS rescore
  11. 2026-07-07 13:46 UTCEPSS rescore
  12. 2026-07-06 16:27 UTCEPSS rescore
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  14. 2026-07-06 02:23 UTCEPSS rescore
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  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-01 15:06 UTCEPSS rescore
  19. 2026-06-30 23:22 UTCEPSS rescore
  20. 2026-06-29 14:06 UTCEPSS rescore
  21. 2026-06-28 14:07 UTCEPSS rescore
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  24. 2026-06-25 13:49 UTCEPSS rescore
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  1. 2026-06-24 14:05 UTCEPSS rescore
  2. 2026-06-23 21:33 UTCEPSS rescore
  3. 2026-06-22 14:25 UTCEPSS rescore
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  5. 2026-06-21 14:56 UTCEPSS rescore
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  7. 2026-06-21 01:59 UTCEPSS rescore
  8. 2026-06-19 19:25 UTCEPSS rescore
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  10. 2026-06-18 17:52 UTCEPSS rescore
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  12. 2026-06-17 17:53 UTCEPSS rescore
  13. 2026-06-16 17:52 UTCEPSS rescore
  14. 2026-06-15 17:49 UTCEPSS rescore
  15. 2026-06-14 23:18 UTCEPSS rescore
  16. 2026-06-14 22:43 UTCEG score recompute
  17. 2026-06-14 09:43 UTCEG score recompute
  18. 2026-06-13 23:00 UTCEPSS rescore
  19. 2026-06-12 23:12 UTCEPSS rescore
  20. 2026-06-12 23:12 UTCEPSS rescore
  21. 2026-06-12 07:34 UTCEG score recompute
  22. 2026-06-11 18:42 UTCEG score recompute
  23. 2026-06-11 14:00 UTCEPSS rescore
  24. 2026-06-11 05:54 UTCEG score recompute
  25. 2026-06-10 22:18 UTCEPSS rescore
  26. 2026-06-10 14:25 UTCEG score recompute
  27. 2026-06-10 13:22 UTCEPSS rescore
  28. 2026-06-10 01:37 UTCEG score recompute
  29. 2026-06-09 12:49 UTCEG score recompute
  30. 2026-06-09 00:01 UTCEG score recompute
  31. 2026-06-08 14:17 UTCEPSS rescore
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  33. 2026-06-08 10:18 UTCEG score recompute
  34. 2026-06-07 21:22 UTCEG score recompute
  35. 2026-06-07 15:25 UTCEPSS rescore
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  37. 2026-06-07 15:25 UTCEPSS rescore
  38. 2026-06-07 08:33 UTCEG score recompute
  39. 2026-06-06 19:45 UTCEG score recompute
  40. 2026-06-06 13:47 UTCEPSS rescore
  41. 2026-06-06 13:47 UTCEPSS rescore
  42. 2026-06-06 06:55 UTCEG score recompute
  43. 2026-06-05 22:47 UTCEPSS rescore
  44. 2026-06-05 22:47 UTCEPSS rescore
  45. 2026-06-05 18:06 UTCEG score recompute
  46. 2026-06-05 06:10 UTCEPSS rescore
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  48. 2026-06-05 05:18 UTCEG score recompute
  49. 2026-06-04 16:23 UTCEG score recompute
  50. 2026-06-04 13:12 UTCEPSS rescore
  51. 2026-06-04 13:12 UTCEPSS rescore
  52. 2026-06-04 03:34 UTCEG score recompute
  53. 2026-06-03 14:40 UTCEG score recompute
  54. 2026-06-03 01:51 UTCEG score recompute
  55. 2026-06-02 20:13 UTCEPSS rescore
  56. 2026-06-02 13:02 UTCEG score recompute
  57. 2026-06-02 00:14 UTCEG score recompute
  58. 2026-06-01 13:52 UTCEPSS rescore
  59. 2026-06-01 13:52 UTCEPSS rescore
  60. 2026-06-01 13:51 UTCEPSS rescore
  61. 2026-06-01 11:13 UTCEG score recompute
  62. 2026-05-31 22:30 UTCEPSS rescore
  63. 2026-05-31 22:30 UTCEPSS rescore
  64. 2026-05-31 00:16 UTCEPSS rescore
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  66. 2026-05-31 00:16 UTCEPSS rescore
  67. 2026-05-29 13:44 UTCEPSS rescore
  68. 2026-05-29 13:44 UTCEPSS rescore
  69. 2026-05-28 13:44 UTCEPSS rescore
  70. 2026-05-28 13:44 UTCEPSS rescore
  71. 2026-05-28 13:44 UTCEPSS rescore
  72. 2026-05-27 13:40 UTCEPSS rescore
  73. 2026-05-27 13:40 UTCEPSS rescore
  74. 2026-05-27 13:40 UTCEPSS rescore
  75. 2026-05-26 07:18 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-38651?
CVE-2026-38651 is a high vulnerability published on April 28, 2026. Authentication Bypass vulnerability exists in Netmaker versions prior to 1.5.0. The VerifyHostToken function in logic/jwts.go fails to validate the JWT signature when verifying host tokens. An attacker can forge a JWT signed with any arbitrary key and use it to impersonate any host in the network,…
When was CVE-2026-38651 disclosed?
CVE-2026-38651 was first published in the National Vulnerability Database on April 28, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-38651 actively exploited?
CVE-2026-38651 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-38651?
CVE-2026-38651 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-38651?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38651, 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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