CVE-2026-8286

high

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.

References

https://hackerone.com/reports/3718195

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-41503

https://curl.se/docs/CVE-2026-8286.json

https://curl.se/docs/CVE-2026-8286.html

Details

Source: Mitre, NVD

Published: 2026-07-03

Updated: 2026-09-15

Named Vulnerability: GHSA-32xh-3x3c-6g6h

Risk Information

CVSS v2

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N