CVE-2026-86410

Published: Oct 20, 2026Modified: Oct 29, 2026

8.1

Vector

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

Exploitability: 2.2 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

A flaw in the curl command line tool's logic makes it only set SSH host verification options when interacting directly using SFTP or SCP, and not as a result of following a redirect.

Related CWEs

CWE-297

Improper Validation of Certificate with Host Mismatch

The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.

References (4)

https://curl.se/docs/CVE-2026-86410.html

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

https://curl.se/docs/CVE-2026-86410.json

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

https://hackerone.com/reports/3973176

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

https://hackerone.com/reports/3973176

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.