{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80229", "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "state": "PUBLISHED", "assignerShortName": "curl", "dateReserved": "2026-08-26T04:24:23.168Z", "datePublished": "2026-09-06T17:47:59.510Z", "dateUpdated": "2026-09-06T17:47:59.510Z"}, "containers": {"cna": {"title": "OpenSSL provider use-after-free", "descriptions": [{"lang": "en", "value": "When performing transfers via libcurl\u2019s multi interface, pooled TLS\nconnections can outlive their originating easy handles. In OpenSSL 3 provider\nconfigurations, libcurl attaches an allocated library context to the easy\nhandle's state and passes it to OpenSSL without acquiring an ownership\nreference; destroying the easy handle prematurely frees this context while the\nactive connection retains a dangling pointer, leading to a heap-use-after-free\nupon subsequent I/O or post-handshake operations."}], "providerMetadata": {"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9", "shortName": "curl", "dateUpdated": "2026-09-06T17:47:59.510Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-416 Use After Free"}]}], "affected": [{"vendor": "curl", "product": "curl", "versions": [{"version": "8.21.0", "status": "affected", "lessThanOrEqual": "8.21.0", "versionType": "semver"}, {"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"}, {"version": "8.17.0", "status": "affected", "lessThanOrEqual": "8.17.0", "versionType": "semver"}, {"version": "8.16.0", "status": "affected", "lessThanOrEqual": "8.16.0", "versionType": "semver"}, {"version": "8.15.0", "status": "affected", "lessThanOrEqual": "8.15.0", "versionType": "semver"}, {"version": "8.14.1", "status": "affected", "lessThanOrEqual": "8.14.1", "versionType": "semver"}, {"version": "8.14.0", "status": "affected", "lessThanOrEqual": "8.14.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://curl.se/docs/CVE-2026-80229.json", "name": "json"}, {"url": "https://curl.se/docs/CVE-2026-80229.html", "name": "www"}, {"url": "https://hackerone.com/reports/3969255", "name": "issue"}], "credits": [{"lang": "en", "value": "Stanislav Fort (Aisle Research)", "type": "finder"}, {"lang": "en", "value": "Daniel Stenberg", "type": "remediation developer"}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "curl", "vendor": "curl", "versions": [{"lessThanOrEqual": "8.21.0", "status": "affected", "version": "8.21.0", "versionType": "semver"}, {"lessThanOrEqual": "8.20.0", "status": "affected", "version": "8.20.0", "versionType": "semver"}, {"lessThanOrEqual": "8.19.0", "status": "affected", "version": "8.19.0", "versionType": "semver"}, {"lessThanOrEqual": "8.18.0", "status": "affected", "version": "8.18.0", "versionType": "semver"}, {"lessThanOrEqual": "8.17.0", "status": "affected", "version": "8.17.0", "versionType": "semver"}, {"lessThanOrEqual": "8.16.0", "status": "affected", "version": "8.16.0", "versionType": "semver"}, {"lessThanOrEqual": "8.15.0", "status": "affected", "version": "8.15.0", "versionType": "semver"}, {"lessThanOrEqual": "8.14.1", "status": "affected", "version": "8.14.1", "versionType": "semver"}, {"lessThanOrEqual": "8.14.0", "status": "affected", "version": "8.14.0", "versionType": "semver"}]}], "source": "2499f714-1537-4658-8207-48ae4bb9eae9"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "When performing transfers via libcurl\u2019s multi interface, pooled TLS\nconnections can outlive their originating easy handles. In OpenSSL 3 provider\nconfigurations, libcurl attaches an allocated library context to the easy\nhandle's state and passes it to OpenSSL without acquiring an ownership\nreference; destroying the easy handle prematurely frees this context while the\nactive connection retains a dangling pointer, leading to a heap-use-after-free\nupon subsequent I/O or post-handshake operations."}], "id": "CVE-2026-80229", "lastModified": "2026-09-06T18:17:22.217", "metrics": {}, "published": "2026-09-06T18:17:22.217", "references": [{"source": "2499f714-1537-4658-8207-48ae4bb9eae9", "url": "https://curl.se/docs/CVE-2026-80229.html"}, {"source": "2499f714-1537-4658-8207-48ae4bb9eae9", "url": "https://curl.se/docs/CVE-2026-80229.json"}, {"source": "2499f714-1537-4658-8207-48ae4bb9eae9", "url": "https://hackerone.com/reports/3969255"}], "sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.21.0,8.21.0]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.20.0,8.20.0]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.19.0,8.19.0]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.18.0,8.18.0]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.17.0,8.17.0]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.16.0,8.16.0]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.15.0,8.15.0]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.14.1,8.14.1]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.14.0,8.14.0]"}}], "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": "2026-09-06T19:30:11.743826+00:00", "updated": "2026-09-06T20:00:05.830303+00:00", "vendors": ["curl", "curl$PRODUCT$curl"], "weaknesses": ["CWE-416"]}