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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.
Reserved 2025-04-16 | Published 2025-06-25 | Updated 2025-06-25 | Assigner sba-researchThomas Kostal
Andreas Boll
github.com/...-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash
github.com/...erduck/security/advisories/GHSA-688c-vjrc-84rv
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