{"id":"CVE-2025-6497","summary":"HTACG tidy-html5 parser.c prvTidyParseNamespace assertion","details":"A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file src/parser.c. The manipulation leads to reachable assertion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.","modified":"2026-08-12T03:51:10.119481062Z","published":"2025-06-23T00:31:07.356Z","database_specific":{"cna_assigner":"VulDB","cwe_ids":["CWE-617"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6497.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6497.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6497"},{"type":"ADVISORY","url":"https://vuldb.com/?id.313613"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.601008"},{"type":"REPORT","url":"https://github.com/htacg/tidy-html5/issues/1142"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.313613"},{"type":"EVIDENCE","url":"https://github.com/user-attachments/files/19825297/tidy-html5_crash_2.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-2025-6497.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"}]}