{"id":"CVE-2026-35201","state":"PUBLISHED","title":"Discount has an Out-of-bounds Read in rdiscount","description":"Discount is an implementation of John Gruber's Markdown markup language in C. From 1.3.1.1 to before 2.2.7.4, a signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INT_MAX are truncated to a signed int before entering the native parser, allowing the parser to read past the end of the supplied buffer and crash the process. This vulnerability is fixed in 2.2.7.4.","publishedAt":"2026-04-06T19:49:48.806Z","updatedAt":"2026-04-07T16:21:14.803Z","severity":{"score":5.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["davidfstr rdiscount"],"affected":[{"vendor":"davidfstr","product":"rdiscount","versions":[{"version":">= 1.3.1.1, < 2.2.7.4","status":"affected"}]}],"references":["https://github.com/davidfstr/rdiscount/security/advisories/GHSA-6r34-94wq-jhrc"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/35xxx/CVE-2026-35201.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35201","state":"PUBLISHED","datePublished":"2026-04-06T19:49:48.806Z","dateUpdated":"2026-04-07T16:21:14.803Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-01T18:48:58.937Z"},"containers":{"cna":{"title":"Discount has an Out-of-bounds Read in rdiscount","descriptions":[{"lang":"en","value":"Discount is an implementation of John Gruber's Markdown markup language in C. From 1.3.1.1 to before 2.2.7.4, a signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INT_MAX are truncated to a signed int before entering the native parser, allowing the parser to read past the end of the supplied buffer and crash the process. This vulnerability is fixed in 2.2.7.4."}],"affected":[{"vendor":"davidfstr","product":"rdiscount","versions":[{"version":">= 1.3.1.1, < 2.2.7.4","status":"affected"}]}],"references":[{"url":"https://github.com/davidfstr/rdiscount/security/advisories/GHSA-6r34-94wq-jhrc","name":"https://github.com/davidfstr/rdiscount/security/advisories/GHSA-6r34-94wq-jhrc","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-06T19:49:48.806Z"},"source":{"advisory":"GHSA-6r34-94wq-jhrc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-07T16:21:05.300982Z","id":"CVE-2026-35201","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-07T16:21:14.803Z"}}]}}}