{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-09-30T14:20:24.766","vulnerabilities":[{"cve":{"id":"CVE-2022-39209","sourceIdentifier":"security-advisories@github.com","published":"2022-09-15T18:15:12.260","lastModified":"2026-06-17T04:57:55.187","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm's autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by running `python3 -c 'print(\"![l\"* 100000 + \"\\n\")' | ./cmark-gfm -e autolink`, which will resource exhaust on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in 0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink extension."},{"lang":"es","value":"cmark-gfm es la bifurcación de GitHub de cmark, una biblioteca de análisis y renderización de CommonMark y un programa en C. En versiones anteriores a 0.29.0.gfm.6, un problema de complejidad de tiempo polinómico en la extensión de autolink de cmark-gfm puede conllevar a un agotamiento de recursos sin límites y la consiguiente denegación de servicio. Los usuarios pueden verificar el parche al ejecutar \"python3 -c \"print(\"![l \"* 100000 + \"\\n\")' | ./cmark-gfm -e autolink\", que agotará los recursos en cmark-gfm sin parchear, pero será mostrado correctamente en cmark-gfm parcheado. Esta vulnerabilidad ha sido parcheada en versión 0.29.0.gfm.6. Es recomendado a usuarios actualizar. Los usuarios que no puedan actualizares deberán deshabilitar el uso de la extensión autolink"}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"github","product":"cmark-gfm","versions":[{"version":"< 0.29.0.gfm.6","status":"affected"}]}]}],"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:L/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-04-23T15:51:25.757051Z","id":"CVE-2022-39209","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-400"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-407"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*","versionEndExcluding":"0.29.0.gfm.6","matchCriteriaId":"9BC5A247-1236-4667-BA80-41EC86DFE3B2"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*","matchCriteriaId":"80E516C0-98A4-4ADE-B69F-66A772E2BAAA"},{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*","matchCriteriaId":"5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD"},{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*","matchCriteriaId":"E30D0E6F-4AE8-4284-8716-991DFA48CC5D"}]}]}],"references":[{"url":"https://en.wikipedia.org/wiki/Time_complexity","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://github.com/github/cmark-gfm/commit/9d57d8a23142b316282bdfc954cb0ecda40a8655","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/github/cmark-gfm/security/advisories/GHSA-cgh3-p57x-9q7q","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIUCZN3PEKUCT2JQYQTYOVIJG2KSD6G7/","source":"security-advisories@github.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMGP65NANDVKPDMXMKYO2ZV2H2HZJY4P/","source":"security-advisories@github.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEAAAI4OULDYQ2TA3HOXH54PC3DCBFZS/","source":"security-advisories@github.com"},{"url":"https://en.wikipedia.org/wiki/Time_complexity","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://github.com/github/cmark-gfm/commit/9d57d8a23142b316282bdfc954cb0ecda40a8655","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/github/cmark-gfm/security/advisories/GHSA-cgh3-p57x-9q7q","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIUCZN3PEKUCT2JQYQTYOVIJG2KSD6G7/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMGP65NANDVKPDMXMKYO2ZV2H2HZJY4P/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEAAAI4OULDYQ2TA3HOXH54PC3DCBFZS/","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}