---
cve: "CVE-2026-80229"
severity: "LOW"
cvss: 3.1
epss: "4.5%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-09-06 18:17:22"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T00:49:23+02:00"
---

# CVE-2026-80229

> 3.1 LOW

## Beschreibung

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.

## Referenzen

- <https://curl.se/docs/CVE-2026-80229.html>
- <https://curl.se/docs/CVE-2026-80229.json>
- <https://hackerone.com/reports/3969255>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-80229) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_