{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T00:55:27.253","vulnerabilities":[{"cve":{"id":"CVE-2020-28466","sourceIdentifier":"report@snyk.io","published":"2021-03-07T10:15:12.957","lastModified":"2026-03-30T14:30:00.877","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"This affects all versions of package github.com/nats-io/nats-server/server. Untrusted accounts are able to crash the server using configs that represent a service export/import cycles. Disclaimer from the maintainers: Running a NATS service which is exposed to untrusted users presents a heightened risk. Any remote execution flaw or equivalent seriousness, or denial-of-service by unauthenticated users, will lead to prompt releases by the NATS maintainers. Fixes for denial of service issues with no threat of remote execution, when limited to account holders, are likely to just be committed to the main development branch with no special attention. Those who are running such services are encouraged to build regularly from git."},{"lang":"es","value":"Esto afecta a todas las versiones del paquete github.com/nats-io/nats-server/server. Las cuentas que no son confiables pueden bloquear el servidor mediante configuraciones que representan ciclos de exportación/importación de un servicio. Reclamando de los mantenedores: una ejecución de un servicio NATS que está expuesto a usuarios que no son de confianza presenta un riesgo mayor. Cualquier fallo de ejecución remota o gravedad equivalente, o denegación de servicio por parte de usuarios no autenticados, conllevará a liberaciones rápidas por parte de los mantenedores de NATS. Es probable que las soluciones para problemas de denegación de servicio sin amenaza de ejecución remota, cuando se limitan a los titulares de cuentas, solo se comprometan con la rama de desarrollo principal sin una atención especial. Se anima a aquellos que ejecutan dichos servicios a que compilen regularmente desde git"}],"metrics":{"cvssMetricV31":[{"source":"report@snyk.io","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.2.0","matchCriteriaId":"A6A674D0-36A2-4AF7-A37E-AE127E53D2E1"}]}]}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2021/03/16/1","source":"report@snyk.io","tags":["Mailing List"]},{"url":"http://www.openwall.com/lists/oss-security/2021/03/16/2","source":"report@snyk.io","tags":["Mailing List","Third Party Advisory"]},{"url":"https://github.com/nats-io/nats-server/pull/1731","source":"report@snyk.io","tags":["Patch","Third Party Advisory"]},{"url":"https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMNATSIONATSSERVERSERVER-1042967","source":"report@snyk.io","tags":["Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/03/16/1","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List"]},{"url":"http://www.openwall.com/lists/oss-security/2021/03/16/2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]},{"url":"https://github.com/nats-io/nats-server/pull/1731","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMNATSIONATSSERVERSERVER-1042967","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}