{"id":"CVE-2025-6496","summary":"HTACG tidy-html5 parser.c InsertNodeAsParent null pointer dereference","details":"A vulnerability was found in HTACG tidy-html5 5.8.0. It has been declared as problematic. This vulnerability affects the function InsertNodeAsParent of the file src/parser.c. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.","modified":"2026-08-12T03:51:34.640180598Z","published":"2025-06-23T00:00:15.786Z","database_specific":{"cwe_ids":["CWE-404","CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6496.json","cna_assigner":"VulDB"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6496.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6496"},{"type":"ADVISORY","url":"https://vuldb.com/?id.313612"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.601007"},{"type":"REPORT","url":"https://github.com/htacg/tidy-html5/issues/1141"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.313612"},{"type":"EVIDENCE","url":"https://github.com/user-attachments/files/19652942/tidy-html5_crash.txt"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/htacg/tidy-html5","events":[{"introduced":"1ca37471b48a3498f985509828cb3cf85ea129f8"},{"last_affected":"1ca37471b48a3498f985509828cb3cf85ea129f8"}],"database_specific":{"extracted_events":[{"introduced":"5.8.0"},{"last_affected":"5.8.0"}],"source":"AFFECTED_FIELD"}}],"versions":["5.8.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6496.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}]}