CVE-2025-41256 Information

Description

Cyberduck and Mountain Duck improper handle TLS certificate pinning for untrusted certificates (e.g. self-signed) since the certificate fingerprint is stored as SHA-1 although SHA-1 is considered weak.

This issue affects Cyberduck: through 9.1.6; Mountain Duck: through 4.17.5.

Reference

https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash

Related CNNVD

CNNVD-202506-3147 (Published: 2025-06-25)