Improper Verification of Cryptographic Signature Affecting paillier-zk package, versions <0.4.3>=0.7.0-alpha.1 <0.7.0-alpha.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUST-PAILLIERZK-14121780
- published26 Nov 2025
- disclosed24 Nov 2025
- creditUnknown
Introduced: 24 Nov 2025
CVE-2025-66016 (opens in a new tab)How to fix?
Upgrade paillier-zk to version 0.4.3, 0.7.0-alpha.2 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to a missing check in the Zero-Knowledge Proof used during the Auxiliary Key Generation protocol. An attacker acting as a single malicious signer can reconstruct the full private key.