How severe is CVE-2026-38651?

CVE-2026-38651 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2026-38651 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-38651?

CVE-2026-38651 affects Netmaker. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-38651?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-38651 have an EU (EUVD) identifier?

Yes. CVE-2026-38651 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26062.

When was CVE-2026-38651 published?

CVE-2026-38651 was published on 2026-04-28 and last updated on 2026-06-17.

CVE-2026-38651

CVE-2026-38651 is a high-severity vulnerability in Netmaker with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26062
Weakness: CWE-347
Affected product: Netmaker
Published: 2026-04-28
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2026-38651?: 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
How severe is CVE-2026-38651?: CVE-2026-38651 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2026-38651 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-38651?: CVE-2026-38651 affects Netmaker. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-38651?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-38651 have an EU (EUVD) identifier?: Yes. CVE-2026-38651 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26062.
When was CVE-2026-38651 published?: CVE-2026-38651 was published on 2026-04-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:netmaker:netmaker:*:*:*:*:*:*:*:*

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