CVE Database›Document archive›CVE-2025-10966

CVE-2025-10966

curl: Curl missing SFTP host verification with wolfSSH backend

Loading…

Severity

Moderate

Red Hat Product Security

5.9

CVSS 3.1

Review impact separately from score.

Published · November 7, 2025

Updated · August 31, 2026

Description

curl's code for managing SSH connections when SFTP was done using the wolfSSH powered backend was flawed and missed host verification mechanisms. As the wolfSSH backend was documented as incomplete and fail tests, it is not expected that many users execute this code in production.

Statement

This vulnerability doesn't affect any supported Red Hat product. This flaw affects only curl when built with wolfSSH backend support, meanwhile for Red Hat Enterprise Linux and other Red Hat products the default SSH backend being use is libssh. It's not possible to change this configuration in runtime, as it's a build time only configuration.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-322 · Key Exchange without Entity Authentication