CVE-2026-49825

{"id": "CVE-2026-49825", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49825", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-21T16:41:32.043801Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.7, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "lxml", "product": "lxml", "versions": [{"status": "affected", "version": "< 6.1.1"}]}, {"vendor": "fedora-python", "product": "lxml_html_clean", "versions": [{"status": "affected", "version": "< 0.4.5"}]}]}], "published": "2026-08-20T15:17:30.707", "references": [{"url": "https://github.com/fedora-python/lxml_html_clean/commit/322357ac61c6cf80fcbaba53b4e92e31f3ded9f2", "source": "security-advisories@github.com"}, {"url": "https://github.com/fedora-python/lxml_html_clean/releases/tag/0.4.5", "source": "security-advisories@github.com"}, {"url": "https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-4jhm-jv67-739f", "source": "security-advisories@github.com"}, {"url": "https://github.com/lxml/lxml/commit/5927a6d5e851845140975d99b65461e255caaab0", "source": "security-advisories@github.com"}, {"url": "https://github.com/lxml/lxml/releases/tag/lxml-6.1.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-4jhm-jv67-739f", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-184"}]}], "descriptions": [{"lang": "en", "value": "lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.1, link attributes in ``lxml.html.defs.link_attrs`` were missing ``xlink:href``, which can be used for URL bypass attacks in embedded SVG/MathML/etc. content. This vulnerability was fixed in lxml 6.1.1 and lxml_html_clean 0.4.5."}], "lastModified": "2026-08-21T17:16:31.380", "sourceIdentifier": "security-advisories@github.com"}