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Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata attributes to applications parsing untrusted XML data, causing process crashes or potential code execution.","state":0,"publishedAt":"2026-05-26T14:08:48.973+00:00","modifiedAt":"2026-10-29T21:15:38.538+00:00","affected":[{"ecosystem":"Vendor product","name":"libyang","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"libyang\",\n                    \"product\": \"libyang\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"5.4.3\"\n                        },\n                        {\n                            \"version\": \"5.4.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/CESNET/libyang/security/advisories/GHSA-9f49-8x56-jmjc","https://github.com/CESNET/libyang/commit/6b5ed47ee674fbe86b31bbebc4ff26889aeff38c","https://red.anthropic.com/2026/cvd/findings/ANT-2026-TZQ1KH7E","https://www.vulncheck.com/advisories/libyang-heap-use-after-free-write-in-xml-metadata-parsing"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-41401","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-41401","identifiers":["CVE-2026-41401"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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