{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-11352", "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "state": "PUBLISHED", "assignerShortName": "curl", "dateReserved": "2026-06-05T11:23:43.389Z", "datePublished": "2026-07-03T06:12:10.777Z", "dateUpdated": "2026-07-03T06:12:10.777Z"}, "containers": {"cna": {"title": "QUIC zero-length UDP datagrams busy-loop", "descriptions": [{"lang": "en", "value": "An issue in curl\u2019s QUIC UDP receive function allows a malicious HTTP/3 server\nto trigger a remote denial of service against a curl or libcurl client.\nBecause the helper function discards zero-length UDP datagrams before counting\nthem toward the per-call packet budget, a connected QUIC peer can continuously\nstream empty datagrams to indefinitely stall the client."}], "providerMetadata": {"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "shortName": "curl", "dateUpdated": "2026-07-03T06:12:10.777Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')"}]}], "affected": [{"vendor": "curl", "product": "curl", "versions": [{"version": "8.20.0", "status": "affected", "lessThanOrEqual": "8.20.0", "versionType": "semver"}, {"version": "8.19.0", "status": "affected", "lessThanOrEqual": "8.19.0", "versionType": "semver"}, {"version": "8.18.0", "status": "affected", "lessThanOrEqual": "8.18.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://curl.se/docs/CVE-2026-11352.json", "name": "json"}, {"url": "https://curl.se/docs/CVE-2026-11352.html", "name": "www"}, {"url": "https://hackerone.com/reports/3783438", "name": "issue"}], "credits": [{"lang": "en", "value": "vectorqueue on hackerone (AntAISecurityLab)", "type": "finder"}, {"lang": "en", "value": "Stefan Eissing", "type": "remediation developer"}]}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "8.20.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "8.19.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "8.18.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "curl", "source": "cna", "vendor": "curl"}, "product": "curl", "vendor": "curl"}], "created": "2026-07-03T07:30:09.157135+00:00", "updated": "2026-07-03T07:30:09.157179+00:00", "vendors": ["curl", "curl$PRODUCT$curl"]}