CVE-2022-50237

ed25519-dalek: ed25519-dalek: Private Key Extraction Vulnerability

Published Jul 28, 2025 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-55212 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.
Github GHSA Github GHSA GHSA-w5vr-6qhr-36cc `ed25519-dalek` Double Public Key Signing Function Oracle Attack
History
Type Values Removed Values Added
Title ed25519-dalek: ed25519-dalek: Private Key Extraction Vulnerability
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-497
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N'}

Type Values Removed Values Added
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.
References

Subscriptions

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Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 28, 2025, 1:56 PM
Reserved
Jul 28, 2025, 12:00 AM
Status
Deferred
Published
Jul 28, 2025, 2:15 AM
Modified
Jun 17, 2026, 5:23 AM
Severity
Moderate
Public date
Jul 28, 2025, 12:00 AM