{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-05T08:34:08.414","vulnerabilities":[{"cve":{"id":"CVE-2021-39204","sourceIdentifier":"security-advisories@github.com","published":"2021-09-09T22:15:09.773","lastModified":"2024-11-21T06:18:53.640","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead to high CPU utilization when a large number of streams are reset. This can result in a DoS condition. Pomerium versions 0.14.8 and 0.15.1 contain an upgraded envoy binary with this vulnerability patched."},{"lang":"es","value":"Pomerium es un proxy de acceso de código abierto consciente de la identidad. Envoy, en el que es basado Pomerium, maneja inapropiadamente el restablecimiento de los flujos HTTP/2 con una complejidad excesiva. Esto puede conllevar a un alto uso de la CPU cuando es restablecido un gran número de flujos. Esto puede resultar en una condición de DoS. Las versiones 0.14.8 y 0.15.1 de Pomerium contienen un binario envoy actualizado con esta vulnerabilidad parcheada"}],"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}],"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":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-834"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-834"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*","versionEndIncluding":"1.16.4","matchCriteriaId":"2FA474E1-2F0F-44D7-938F-40EE9DB5C230"},{"vulnerable":true,"criteria":"cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*","versionStartIncluding":"1.17.0","versionEndExcluding":"1.17.4","matchCriteriaId":"83547329-1394-417F-93DB-70C1A9D173B0"},{"vulnerable":true,"criteria":"cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*","versionStartIncluding":"1.18.0","versionEndExcluding":"1.18.4","matchCriteriaId":"D7376E28-9915-4CA1-A5DB-40874D10E781"},{"vulnerable":true,"criteria":"cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:*","matchCriteriaId":"1968AA35-60E2-4A00-84A0-617738B55D33"},{"vulnerable":true,"criteria":"cpe:2.3:a:pomerium:pomerium:*:*:*:*:*:*:*:*","versionEndExcluding":"0.14.8","matchCriteriaId":"2793176B-E77A-4393-BFE5-15100D2E80FD"},{"vulnerable":true,"criteria":"cpe:2.3:a:pomerium:pomerium:0.15.0:*:*:*:*:*:*:*","matchCriteriaId":"B0082414-BE21-4DDC-8B84-5DC9F9BAE8E3"}]}]}],"references":[{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://github.com/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78r","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ","source":"security-advisories@github.com","tags":["Not Applicable"]},{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://github.com/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78r","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Not Applicable"]}]}}]}