{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-10-03T01:21:52.659","vulnerabilities":[{"cve":{"id":"CVE-2019-16782","sourceIdentifier":"security-advisories@github.com","published":"2019-12-18T20:15:16.180","lastModified":"2026-06-17T02:22:47.697","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"There's a possible information leak / session hijack vulnerability in Rack (RubyGem rack). This vulnerability is patched in versions 1.6.12 and 2.0.8. Attackers may be able to find and hijack sessions by using timing attacks targeting the session id. Session ids are usually stored and indexed in a database that uses some kind of scheme for speeding up lookups of that session id. By carefully measuring the amount of time it takes to look up a session, an attacker may be able to find a valid session id and hijack the session. The session id itself may be generated randomly, but the way the session is indexed by the backing store does not use a secure comparison."},{"lang":"es","value":"Se presenta una posible vulnerabilidad de fuga de información y secuestro de sesión en Rack (rack RubyGem). Esta vulnerabilidad está parchada en las versiones 1.6.12 y 2.0.8. Los atacantes pueden ser capaces de encontrar y secuestrar sesiones utilizando ataques de sincronización dirigidos al id de sesión. Los id de sesión comúnmente son almacenados e indexados a una base de datos que utiliza algún tipo de esquema para acelerar las búsquedas de ese identificador de sesión. Al medir cuidadosamente la cantidad de tiempo que toma buscar una sesión, un atacante puede encontrar un id de sesión válida y secuestrar la sesión. El id de sesión en sí puede ser generado aleatoriamente, pero la forma en que es indexada la sesión por parte del almacén de respaldo no utiliza una comparación segura."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"rack","product":"rack","versions":[{"version":"before 1.6.12 or 2.0.8","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.8,"impactScore":4.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:N/A:N","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"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-208"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-203"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:rack:rack:*:*:*:*:*:ruby:*:*","versionEndExcluding":"1.6.12","matchCriteriaId":"D920538B-B12B-4CB6-B04C-4ED0122B1ACE"},{"vulnerable":true,"criteria":"cpe:2.3:a:rack:rack:*:*:*:*:*:ruby:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.0.8","matchCriteriaId":"75BDB863-165A-4446-855E-25243469A538"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*","matchCriteriaId":"80F0FA5D-8D3B-4C0E-81E2-87998286AF33"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*","matchCriteriaId":"B620311B-34A3-48A6-82DF-6F078D7A4493"}]}]}],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00016.html","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2019/12/18/2","source":"security-advisories@github.com","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2019/12/18/3","source":"security-advisories@github.com","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2019/12/19/3","source":"security-advisories@github.com","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2020/04/08/1","source":"security-advisories@github.com","tags":["Mailing List","Patch","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2020/04/09/2","source":"security-advisories@github.com","tags":["Mailing List","Third Party Advisory"]},{"url":"https://github.com/rack/rack/commit/7fecaee81f59926b6e1913511c90650e76673b38","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/rack/rack/security/advisories/GHSA-hrqr-hxpp-chr3","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZXMWILCICQLA2BYSP6I2CRMUG53YBLX/","source":"security-advisories@github.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00016.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2019/12/18/2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2019/12/18/3","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2019/12/19/3","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2020/04/08/1","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Patch","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2020/04/09/2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]},{"url":"https://github.com/rack/rack/commit/7fecaee81f59926b6e1913511c90650e76673b38","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/rack/rack/security/advisories/GHSA-hrqr-hxpp-chr3","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZXMWILCICQLA2BYSP6I2CRMUG53YBLX/","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}