CVE-2026-80229
Fixed in a distro release EPSS <1%CVSS 7.5
When performing transfers via libcurl’s multi interface, pooled TLS connections can outlive their originating easy handles. In OpenSSL 3 provider configurations, libcurl attaches an allocated library context to the easy handle's state and passes it to OpenSSL without acquiring an ownership reference; destroying the easy handle prematurely frees this context while the active connection retains a dangling pointer, leading to a heap-use-after-free upon subsequent I/O or post-handshake operations.
Products: curl
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.23 | curl | 8.22.0-r0 |
| Alpine 3.24 | curl | 8.22.0-r0 |
| Chainguard | curl | 8.22.0-r0 |
| Debian 13 | curl | no fix |
| Debian 14 | curl | 8.22.0~rc3-1 |
| Red Hat hummingbird 1 | curl | 0:8.22.0-0.1.hum1 |
| Red Hat hummingbird 1 | libcurl | 0:8.22.0-0.1.hum1 |
| Red Hat hummingbird 1 | libcurl-devel | 0:8.22.0-0.1.hum1 |
| Red Hat hummingbird 1 | libcurl-minimal | 0:8.22.0-0.1.hum1 |
| SUSE Linux Enterprise Micro 5.3 | curl | 8.14.1-150400.5.91.1 |
| SUSE Linux Enterprise Micro 5.4 | curl | 8.14.1-150400.5.91.1 |
| SUSE Linux Enterprise Micro 5.5 | curl | 8.14.1-150400.5.91.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | curl | 8.14.1-150700.7.26.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | curl | 8.14.1-150600.4.51.1 |
| SUSE Linux Enterprise Server 16.0 | curl | 8.14.1-160000.9.1 |
| SUSE Linux Enterprise Server 16.0 | curl-mini | 8.14.1-160000.9.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | curl | 8.0.1-11.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | curl | 8.14.1-150600.4.51.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | curl | 8.14.1-160000.9.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | curl-mini | 8.14.1-160000.9.1 |
| SUSE Linux Micro 6.1 | curl | 8.14.1-slfo.1.1_10.1 |
| SUSE Linux Micro 6.2 | curl | 8.14.1-160000.9.1 |
| Ubuntu 22.04 LTS | curl | 7.81.0-1ubuntu1.29 |
| Ubuntu 24.04 LTS | curl | 8.5.0-2ubuntu10.15 |
| Ubuntu 26.04 LTS | curl | 8.18.0-1ubuntu2.7 |
| Ubuntu 26.10 | curl | 8.20.0-2ubuntu11 |
| Ubuntu Pro 16.04 LTS | curl | 7.47.0-1ubuntu2.19+esm20 |
| Ubuntu Pro 18.04 LTS | curl | 7.58.0-2ubuntu3.24+esm14 |
| Ubuntu Pro 20.04 LTS | curl | 7.68.0-1ubuntu2.25+esm9 |
| Wolfi | curl | 8.22.0-r0 |
| openSUSE Leap 16.0 | curl | 8.14.1-160000.9.1 |
| openSUSE Tumbleweed | curl | 8.22.0-1.1 |