CVE-2026-59887

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{"affected": [{"affectedData": [{"product": "linkify-it", "vendor": "markdown-it", "versions": [{"status": "affected", "version": "< 5.0.2"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:markdown-it:linkify-it:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "B4867AD7-D754-470B-BA7B-F6806D94C027", "versionEndExcluding": "5.0.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "linkify-it is a links recognition library with full Unicode support. Prior to 5.0.2, the mailto: schema validator used by .test() and .match() can be invoked at every mailto: occurrence and scan the remaining input through src_email_name in lib/re.mjs, causing O(n^2) CPU consumption on crafted user text. This issue is fixed in version 5.0.2."}, {"lang": "es", "value": "linkify-it es una biblioteca de reconocimiento de enlaces con soporte completo de Unicode. Antes de la versi\u00f3n 5.0.2, el validador del esquema mailto: utilizado por .test() y .match() puede ser invocado en cada ocurrencia de mailto: y escanear la entrada restante a trav\u00e9s de src_email_name en lib/re.mjs, causando un consumo de CPU de O(n^2) en texto de usuario manipulado. Este problema est\u00e1 solucionado en la versi\u00f3n 5.0.2."}], "id": "CVE-2026-59887", "lastModified": "2026-10-25T17:10:00.197", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59887", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-09T14:40:56.927532Z", "version": "2.0.3"}}]}, "published": "2026-07-08T17:17:26.883", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/markdown-it/linkify-it/commit/105e5d77f7d119871d2b2d86ed208568eb3e7ffe"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/markdown-it/linkify-it/releases/tag/5.0.2"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/markdown-it/linkify-it/security/advisories/GHSA-v245-v573-v5vm"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/markdown-it/linkify-it/security/advisories/GHSA-v245-v573-v5vm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-407"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

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