UBUNTU-CVE-2026-80229
- Source
- https://ubuntu.com/security/CVE-2026-80229
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80229.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-80229
- Upstream
- Downstream
- Related
- Published
- 2026-09-06T18:17:00Z
- Modified
- 2026-09-26T04:30:03Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Ubuntu:26.04:LTS / curl
Package
- Name
- curl
- Purl
- pkg:deb/ubuntu/curl?arch=source&distro=resolute
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed8.18.0-1ubuntu2.7
Affected versions
8.*
8.14.1-2ubuntu1
8.17.0-1ubuntu1
8.18.0-1ubuntu1
8.18.0-1ubuntu2
8.18.0-1ubuntu2.1
8.18.0-1ubuntu2.2
8.18.0-1ubuntu2.3
8.18.0-1ubuntu2.4
8.18.0-1ubuntu2.5
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.18.0-1ubuntu2.7"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.18.0-1ubuntu2.7"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.18.0-1ubuntu2.7"
}
]
}