CVE-2026-8286

PoC —

CVSS 3.1

8.1 high

EPSS

<1%p24

Published

Jul 3, 2026 (Jul 3, 2026)

Modified

Sep 15, 2026

Description

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not.

Vendors: haxx
Products: curl
Weakness: CWE-295
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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