{"api_version":"1","generated_at":"2026-09-07T09:11:05+00:00","cve":"CVE-2026-80229","urls":{"html":"https://cve.report/CVE-2026-80229","api":"https://cve.report/api/cve/CVE-2026-80229.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80229","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80229"},"summary":{"title":"OpenSSL provider use-after-free","description":"When performing transfers via libcurl’s 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.","state":"PUBLISHED","assigner":"curl","published_at":"2026-09-06 18:17:22","updated_at":"2026-09-06 18:17:22"},"problem_types":["CWE-416 Use After Free"],"metrics":[],"references":[{"url":"https://curl.se/docs/CVE-2026-80229.json","name":"https://curl.se/docs/CVE-2026-80229.json","refsource":"2499f714-1537-4658-8207-48ae4bb9eae9","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://hackerone.com/reports/3969255","name":"https://hackerone.com/reports/3969255","refsource":"2499f714-1537-4658-8207-48ae4bb9eae9","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://curl.se/docs/CVE-2026-80229.html","name":"https://curl.se/docs/CVE-2026-80229.html","refsource":"2499f714-1537-4658-8207-48ae4bb9eae9","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80229","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80229","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.21.0 8.21.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.20.0 8.20.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.19.0 8.19.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.18.0 8.18.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.17.0 8.17.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.16.0 8.16.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.15.0 8.15.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.14.1 8.14.1 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.14.0 8.14.0 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Stanislav Fort (Aisle Research)","lang":"en"},{"source":"CNA","value":"Daniel Stenberg","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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"}]}],"credits":[{"lang":"en","type":"finder","value":"Stanislav Fort (Aisle Research)"},{"lang":"en","type":"remediation developer","value":"Daniel Stenberg"}],"descriptions":[{"lang":"en","value":"When performing transfers via libcurl’s 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."}],"problemTypes":[{"descriptions":[{"description":"CWE-416 Use After Free","lang":"en"}]}],"providerMetadata":{"dateUpdated":"2026-09-06T17:47:59.510Z","orgId":"2499f714-1537-4658-8207-48ae4bb9eae9","shortName":"curl"},"references":[{"name":"json","url":"https://curl.se/docs/CVE-2026-80229.json"},{"name":"www","url":"https://curl.se/docs/CVE-2026-80229.html"},{"name":"issue","url":"https://hackerone.com/reports/3969255"}],"title":"OpenSSL provider use-after-free"}},"cveMetadata":{"assignerOrgId":"2499f714-1537-4658-8207-48ae4bb9eae9","assignerShortName":"curl","cveId":"CVE-2026-80229","datePublished":"2026-09-06T17:47:59.510Z","dateReserved":"2026-08-26T04:24:23.168Z","dateUpdated":"2026-09-06T17:47:59.510Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-06 18:17:22","lastModifiedDate":"2026-09-06 18:17:22","problem_types":["CWE-416 Use After Free"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80229","Ordinal":"1","Title":"OpenSSL provider use-after-free","CVE":"CVE-2026-80229","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80229","Ordinal":"1","NoteData":"When performing transfers via libcurl’s 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.","Type":"Description","Title":"OpenSSL provider use-after-free"}]}}}