{"id":"CVE-2026-74860","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-74860","generatedAt":"2026-10-28T03:39:15.145Z","title":"A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values.","description":"A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free error in the SAX attributeDecl callback handler, where a string is freed twice. This flaw can lead to a denial of service (DoS) due to a reproducible crash in Python applications using the libxml2 SAX bindings.","published":"2026-09-08T12:16:58.000Z","lastModified":"2026-10-26T17:17:29.000Z","status":"Awaiting Analysis","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":8.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-763"],"affected":[],"epss":{"score":0.00658,"percentile":0.5126,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:64463","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71585","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71586","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71641","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72470","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72475","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72476","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:79357","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82939","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:89750","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:89759","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:90309","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-74860","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2529697","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74860","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}