{"affected":[{"affectedData":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"source":"cve@mitre.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:proxy.py_project:proxy.py:*:*:*:*:*:*:*:*","matchCriteriaId":"8B9F903B-99CF-482B-A91A-9117B1A7E890","versionEndExcluding":"2.3.1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"before_upstream_connection in AuthPlugin in http/proxy/auth.py in proxy.py before 2.3.1 accepts incorrect Proxy-Authorization header data because of a boolean confusion (and versus or)."},{"lang":"es","value":"La función before_upstream_connection en AuthPlugin en el archivo http/proxy/auth.py en proxy.py versiones anteriores a 2.3.1, acepta datos de encabezado Proxy-Authorization incorrectos debido a una confusión booleana (y versus o)"}],"id":"CVE-2021-3116","lastModified":"2026-06-17T04:04:41.733","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"NONE","baseScore":5.0,"confidentialityImpact":"NONE","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N","version":"2.0"},"exploitabilityScore":10.0,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"exploitabilityScore":3.9,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-01-11T05:15:10.987","references":[{"source":"cve@mitre.org","tags":["Exploit","Third Party Advisory"],"url":"https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/"},{"source":"cve@mitre.org","tags":["Patch"],"url":"https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46"},{"source":"cve@mitre.org","tags":["Product"],"url":"https://pypi.org/project/proxy.py/2.3.1/#history"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"url":"https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"url":"https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Product"],"url":"https://pypi.org/project/proxy.py/2.3.1/#history"}],"sourceIdentifier":"cve@mitre.org","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-697"}],"source":"nvd@nist.gov","type":"Primary"}]}