{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-24T11:40:28.612","vulnerabilities":[{"cve":{"id":"CVE-2026-33218","sourceIdentifier":"security-advisories@github.com","published":"2026-03-25T20:16:32.623","lastModified":"2026-03-26T17:15:02.390","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a client which can connect to the leafnode port can crash the nats-server with a certain malformed message pre-authentication. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, disable leafnode support if not needed or restrict network connections to the leafnode port, if plausible without compromising the service offered."},{"lang":"es","value":"NATS-Server es un servidor de alto rendimiento para NATS.io, un sistema de mensajería nativo de la nube y del borde. Antes de las versiones 2.11.15 y 2.12.6, un cliente que puede conectarse al puerto leafnode puede bloquear el nats-server con un mensaje malformado específico pre-autenticación. Las versiones 2.11.15 y 2.12.6 contienen una corrección. Como solución alternativa, deshabilite el soporte de leafnode si no es necesario o restrinja las conexiones de red al puerto leafnode, si es factible sin comprometer el servicio ofrecido."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","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}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-20"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*","versionEndExcluding":"2.11.15","matchCriteriaId":"13EA156E-2759-4586-A22E-CDEAAD4D610C"},{"vulnerable":true,"criteria":"cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*","versionStartIncluding":"2.12.0","versionEndExcluding":"2.12.6","matchCriteriaId":"4E347CFB-C56D-4FD8-8DD8-3D34C08D7154"}]}]}],"references":[{"url":"https://advisories.nats.io/CVE/secnote-2026-10.txt","source":"security-advisories@github.com","tags":["Mitigation","Vendor Advisory"]},{"url":"https://github.com/nats-io/nats-server/security/advisories/GHSA-vprv-35vv-q339","source":"security-advisories@github.com","tags":["Mitigation","Vendor Advisory"]}]}}]}