{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-08T09:13:48.314","vulnerabilities":[{"cve":{"id":"CVE-2023-42821","sourceIdentifier":"security-advisories@github.com","published":"2023-09-22T17:15:14.990","lastModified":"2024-11-21T08:23:17.253","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"The package `github.com/gomarkdown/markdown` is a Go library for parsing Markdown text and rendering as HTML. Prior to pseudoversion `0.0.0-20230922105210-14b16010c2ee`, which corresponds with commit `14b16010c2ee7ff33a940a541d993bd043a88940`, parsing malformed markdown input with parser that uses parser.Mmark extension could result in out-of-bounds read vulnerability. To exploit the vulnerability, parser needs to have `parser.Mmark` extension set. The panic occurs inside the `citation.go` file on the line 69 when the parser tries to access the element past its length. This can result in a denial of service. Commit `14b16010c2ee7ff33a940a541d993bd043a88940`/pseudoversion `0.0.0-20230922105210-14b16010c2ee` contains a patch for this issue."},{"lang":"es","value":"El paquete `github.com/gomarkdown/markdown` es una libería Go para analizar texto Markdown y representarlo como HTML. Antes de la pseudoversión `0.0.0-20230922105210-14b16010c2ee`, que corresponde con el commit `14b16010c2ee7ff33a940a541d993bd043a88940`, analizando el markdown con formato incorrecto con un analizador que utiliza la extensión parser.Mmark podría resultar en una vulnerabilidad de lectura fuera de los límites. Para explotar la vulnerabilidad, el analizador debe tener configurada la extensión `parser.Mmark`. El pánico ocurre dentro del archivo `citation.go` en la línea 69 cuando el analizador intenta acceder al elemento más allá de su longitud. Esto puede resultar en una denegación de servicio. Commit `14b16010c2ee7ff33a940a541d993bd043a88940`/pseudoversion `0.0.0-20230922105210-14b16010c2ee` contiene un parche para este problema."}],"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},{"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}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-125"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-125"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gomarkdown:markdown:-:*:*:*:*:go:*:*","matchCriteriaId":"0982DB0A-C064-4EEE-814A-730F890C5F6F"}]}]}],"references":[{"url":"https://github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c41e4/parser/citation.go#L69","source":"security-advisories@github.com","tags":["Product"]},{"url":"https://github.com/gomarkdown/markdown/commit/14b16010c2ee7ff33a940a541d993bd043a88940","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/gomarkdown/markdown/security/advisories/GHSA-m9xq-6h2j-65r2","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]},{"url":"https://github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c41e4/parser/citation.go#L69","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Product"]},{"url":"https://github.com/gomarkdown/markdown/commit/14b16010c2ee7ff33a940a541d993bd043a88940","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://github.com/gomarkdown/markdown/security/advisories/GHSA-m9xq-6h2j-65r2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Vendor Advisory"]}]}}]}