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.

Related CPE's

a

haxx

curl

Vulnerable

References

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

PatchVendor Advisory

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

Vendor Advisory

https://hackerone.com/reports/3718195

ExploitIssue TrackingThird Party Advisory

https://hackerone.com/reports/3718195

ExploitIssue TrackingThird Party Advisory

Weaknesses

2499f714-1537-4658-8207-48ae4bb9eae9

Secondary
CWE-295

[email protected]

Primary
CWE-295

CVSS impact metrics

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

8.1 · High

Information

Source identifier

2499f714-1537-4658-8207-48ae4bb9eae9

Vulnerability status

Modified

Published

2026-07-03T07:16:24.453Z

3 months ago

Last modified

2026-09-15T07:16:31.617Z

3 weeks ago