Heap buffer overflow in CertFromX509 via AuthorityKeyIdentifier size confusion. A heap buffer overflow occurs when converting an X.509 certificate internally due to incorrect size handling of the AuthorityKeyIdentifier extension.
{
"sources": [
{
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-5447",
"published": "2026-04-09T21:16:13.150Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5447",
"modified": "2026-06-17T10:59:02.723Z",
"imported": "2026-07-14T21:22:49.210Z",
"id": "CVE-2026-5447",
"database_specific": {
"status": "Analyzed"
}
},
{
"url": "https://api.github.com/advisories/GHSA-mx4j-fjqx-f8qj",
"html_url": "https://github.com/advisories/GHSA-mx4j-fjqx-f8qj",
"published": "2026-04-09T21:31:31Z",
"imported": "2026-07-14T21:22:54.487Z",
"id": "GHSA-mx4j-fjqx-f8qj",
"modified": "2026-04-29T18:32:37Z"
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{
"url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-21183",
"html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-21183",
"published": "2026-04-09T20:13:34Z",
"imported": "2026-07-14T21:22:51.614Z",
"id": "EUVD-2026-21183",
"modified": "2026-04-10T18:07:28Z"
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"license": "CC-BY-4.0"
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