CVE-2024-21530: Cocoon

Medium severity, CVSS 4.5. EPSS: 0.1% chance of exploitation in the next 30 days.

Versions of the package cocoon before 0.4.0 are vulnerable to Reusing a Nonce, Key Pair in Encryption when the encrypt, wrap, and dump functions are sequentially called. An attacker can generate the same ciphertext by creating a new encrypted message with the same cocoon object. **Note:** The issue does NOT affect objects created with Cocoon::new which utilizes ThreadRng.

Affected products

• Cocoon Cocoon: before 0.4.0 (fixed in 0.4.0)

Published 2024-10-02. Last modified 2026-06-17.