{"id":"CVE-2026-80229","summary":"OpenSSL provider use-after-free","details":"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.","aliases":["CURL-CVE-2026-80229"],"modified":"2026-09-13T18:26:40.455342437Z","published":"2026-09-06T17:47:59.510Z","related":["SUSE-SU-2026:3958-1","SUSE-SU-2026:4047-1","SUSE-SU-2026:4048-1","SUSE-SU-2026:4071-1","openSUSE-SU-2026:11696-1","openSUSE-SU-2026:21774-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"8.21.0"},{"last_affected":"8.21.0"},{"introduced":"8.20.0"},{"last_affected":"8.20.0"},{"introduced":"8.19.0"},{"last_affected":"8.19.0"},{"introduced":"8.18.0"},{"last_affected":"8.18.0"},{"introduced":"8.17.0"},{"last_affected":"8.17.0"},{"introduced":"8.16.0"},{"last_affected":"8.16.0"},{"introduced":"8.15.0"},{"last_affected":"8.15.0"},{"introduced":"8.14.1"},{"last_affected":"8.14.1"},{"introduced":"8.14.0"},{"last_affected":"8.14.0"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"curl","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80229.json"},"references":[{"type":"WEB","url":"https://curl.se/docs/CVE-2026-80229.html"},{"type":"WEB","url":"https://curl.se/docs/CVE-2026-80229.json"},{"type":"WEB","url":"https://hackerone.com/reports/3969255"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80229.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80229"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"4dacb79fcdd9364c1083e06f6a011d797a344f47"},{"fixed":"01346829096c61b372692f6dc43ffa778c6caccd"}],"database_specific":{"cpe":"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"8.14.0"},{"fixed":"8.22.0"}],"source":"CPE_RANGE"}}],"versions":["rc-8_22_0-3","rc-8_22_0-2","rc-8_22_0-1","curl-8_21_0","rc-8_21_0-3","rc-8_21_0-2","rc-8_21_0-1","curl-8_20_0","rc-8_20_0-3","rc-8_20_0-2","rc-8_20_0-1","curl-8_19_0","rc-8_19_0-3","rc-8_19_0-2","rc-8_19_0-1","curl-8_18_0","rc-8_18_0-3","rc-8_18_0-2","rc-8_18_0-1","curl-8_17_0","curl-8_16_0","curl-8_15_0","curl-8_14_1","curl-8_14_0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80229.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}