An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.
{
"sources": [
{
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11352",
"id": "CVE-2026-11352",
"modified": "2026-07-07T18:01:19.013Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-11352",
"published": "2026-07-03T07:16:23.693Z",
"database_specific": {
"status": "Analyzed"
},
"imported": "2026-08-07T19:54:38.743Z"
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{
"html_url": "https://github.com/advisories/GHSA-qxwx-hr5v-h5q4",
"id": "GHSA-qxwx-hr5v-h5q4",
"modified": "2026-07-07T18:31:40Z",
"url": "https://api.github.com/advisories/GHSA-qxwx-hr5v-h5q4",
"published": "2026-07-03T09:31:24Z",
"imported": "2026-08-07T19:56:06.673Z"
},
{
"html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-41498",
"id": "EUVD-2026-41498",
"modified": "2026-07-06T18:27:49Z",
"url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-41498",
"published": "2026-07-03T06:12:10Z",
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