The ed25519-dalek crate before 2 for Rust allows a double public key signing function…
Priority LOW 26CWE-497Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-497.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00217 12th percentileScored 2026-11-07
Fix Fixed ed25519-dalek (dalek-cryptography): 2ed25519-dalek (crates.io): 2.0.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| dalek-cryptography | ed25519-dalek | before 2 | 2 | Patch available | CNA |
| — | ed25519-dalek (crates.io) | before 2.0.0 | 2.0.0 | Patch available | GHSA-w5vr-6qhr-36cc |
- ed25519-dalek Vendordalek-cryptography Affected before 2 Fixed in 2 Patch available CNA
- ed25519-dalek (crates.io) Vendor— Affected before 2.0.0 Fixed in 2.0.0 Patch available GHSA-w5vr-6qhr-36cc
Remediation
- Fix · CNA ed25519-dalek (dalek-cryptography) Fixed in 2
- Fix · GHSA-w5vr-6qhr-36cc ed25519-dalek (crates.io) Fixed in 2.0.0 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 6 products
- Logging Subsystem for Red Hat OpenShift
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat Trusted Artifact Signer
- Red Hat Trusted Profile Analyzer
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50237
- 2026-10-03 Alias added: GHSA-w5vr-6qhr-36cc
References
Sources
- CVE-2022-50237 · CVE Program
- CVE-2022-50237 · NVD
- FIRST EPSS
- GHSA-w5vr-6qhr-36cc · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50237 · Red Hat security data · CC BY 4.0
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