What’s Vulnerable › Vulnerabilities

CVE-2022-50237

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-28 · updated 2026-06-17
• Weakness: CWE-497

Description

The ed25519-dalek crate before 2 for Rust allows a double public key signing function oracle attack. The Keypair implementation leads to a simple computation for extracting a private key.

Affected products

• dalek-cryptography ed25519-dalek: before 2 — fixed in 2

How to fix

Upgrade to a fixed version: dalek-cryptography ed25519-dalek 2. Check the vendor advisory for mitigations.

References

• https://crates.io/crates/ed25519-dalek
• https://github.com/MystenLabs/ed25519-unsafe-libs
• https://rustsec.org/advisories/RUSTSEC-2022-0093.html

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