CVSS 3.1
4.3 mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:NCVE-2020-36843
Medium (4.3). EPSS 0.1% chance of exploitation in the next 30 days. Fixed in net.i2p:i2p 0.9.39.
The implementation of EdDSA in EdDSA-Java (aka ed25519-java) through 0.3.0 exhibits signature malleability and does not satisfy the SUF-CMA (Strong Existential Unforgeability under Chosen Message Attacks) property. This allows attackers to create new valid signatures different from previous signatures for a known message.
Severity
- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-31)
- CWE
- CWE-347
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-p53j-g8pw-4w5f | Maven | net.i2p.crypto:eddsa | <=0.3.0 | no fix published |
| GHSA-p53j-g8pw-4w5f | Maven | net.i2p:i2p | <0.9.39 | 0.9.39 |