Vulnerability · Published Jul 28, 2025 · Assigned by mitre
CVE-2022-50237
Medium 5.9
In plain English
A medium-severity security flaw in ed25519-dalek from dalek-cryptography. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.2%top 87.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:25.10 | rust-curve25519-dalek | no fix listed | UBUNTU-CVE-2022-50237 |
| Ubuntu:26.04:LTS | rust-curve25519-dalek | no fix listed | UBUNTU-CVE-2022-50237 |
| Ubuntu:26.10 | rust-curve25519-dalek | no fix listed | UBUNTU-CVE-2022-50237 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| dalek-cryptography | ed25519-dalek | 0 – before 2 |
Weakness: CWE-497 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N