{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T22:08:34.356","vulnerabilities":[{"cve":{"id":"CVE-2020-6817","sourceIdentifier":"security@mozilla.org","published":"2023-02-16T22:15:10.650","lastModified":"2025-03-19T16:15:14.917","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']})."},{"lang":"es","value":"Los atributos de estilo de análisis del comportamiento de bleach.clean podrían dar como resultado una denegación de servicio de expresión regular (ReDoS). Las llamadas a blanqueador.clean con una etiqueta permitida con un atributo de estilo permitido son vulnerables a ReDoS. Por ejemplo, blanqueador.clean(..., atributos={'a': ['estilo']})."}],"metrics":{"cvssMetricV31":[{"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},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","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":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-1333"}]},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-1333"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:bleach:*:*:*:*:*:*:*:*","versionEndExcluding":"3.1.4","matchCriteriaId":"21F7320C-9B5F-4B16-896E-2326A8B8B488"}]}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1623633","source":"security@mozilla.org","tags":["Exploit","Issue Tracking"]},{"url":"https://github.com/mozilla/bleach/security/advisories/GHSA-vqhp-cxgc-6wmm","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1623633","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Issue Tracking"]},{"url":"https://github.com/mozilla/bleach/security/advisories/GHSA-vqhp-cxgc-6wmm","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}