CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2019-16143
Critical (9.8) in blake2 blake2-rust. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in blake2 0.8.1.
An issue was discovered in the blake2 crate before 0.8.1 for Rust. The BLAKE2b and BLAKE2s algorithms, when used with HMAC, produce incorrect results because the block sizes are half of the required sizes.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
- CWE
- CWE-327
- Published
- Modified
- Record from
- the NVD, synced
Affected
- blake2:blake2-rust
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-4x25-pvhw-5224 | crates.io | blake2 | <0.8.1 | 0.8.1 |
| RUSTSEC-2019-0019 | crates.io | blake2 | >=0.0.0-0 <0.8.1 | 0.8.1 |