Public Key Signing Vulnerability in ed25519-dalek Library by Rust
CVE-2022-50237

5.9MEDIUM

Key Information:

Vendor

Dalek-cryptography

Status
Ed25519-dalek
Vendor
CVE Published:
28 July 2025

What is CVE-2022-50237?

The ed25519-dalek crate prior to version 2 exhibits a vulnerability in its Keypair implementation, allowing attackers to perform a double public key signing function oracle attack. This flaw enables malicious actors to execute a straightforward computation process to extract a private key, potentially compromising sensitive data and cryptographic integrity. Users are advised to update to the latest version to mitigate this risk.

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Deploy the Patch

Affected Version(s)

ed25519-dalek 0 < 2

References

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

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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