{"cve":"CVE-2026-38651","nvd":{"published":"2026-04-28T16:16:13.443","modified":"2026-06-17T10:41:44.767","status":"Analyzed","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","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","score":8.2},"cwes":["CWE-347"],"references":["https://github.com/gravitl/netmaker/commit/5309aa70d464ef565911369714d661a61481a79b","https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass","https://www.zyenra.com/blog/netmaker-jwt-verification-bypass","https://www.zyenra.com/advisories/netmaker-jwt-verification-bypass/","https://www.zyenra.com/blog/netmaker-jwt-verification-bypass"],"products":["netmaker:netmaker"],"source":"nvd","synced_at":"2026-10-19T22:33:09.003606135+00:00"},"epss":{"cve":"CVE-2026-38651","score":0.00298,"percentile":0.22522,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-qpv2-rwc8-c993","url":"https://osv.dev/vulnerability/GHSA-qpv2-rwc8-c993","summary":"Netmaker does not verify JWT signatures for host tokens","modified":"2026-06-25T23:11:06.416639971Z","packages":[{"ecosystem":"Go","name":"github.com/gravitl/netmaker","purl":"pkg:golang/github.com/gravitl/netmaker","ranges":["<1.5.0"],"fixed":["1.5.0"]}]},{"id":"GO-2026-5588","url":"https://osv.dev/vulnerability/GO-2026-5588","summary":"Netmaker does not verify JWT signatures for host tokens in github.com/gravitl/netmaker","modified":"2026-06-25T23:01:32.619188619Z","packages":[{"ecosystem":"Go","name":"github.com/gravitl/netmaker","purl":"pkg:golang/github.com/gravitl/netmaker","ranges":["<1.5.0"],"fixed":["1.5.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}