An issue was discovered in the crypto2 crate through 2021-10-08 for Rust.
Priority MEDIUM 43CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-119 and the CVSS impact.
Summary
An issue was discovered in the crypto2 crate through 2021-10-08 for Rust. During Chacha20 encryption and decryption, an unaligned read of a u32 may occur.
Why it matters now
EPSS 0.00778 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | crypto2 (crates.io) | up to 0.1.2 | — | No fix listed | GHSA-9hfg-pxr6-q4vp |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- crypto2 (crates.io) Vendor— Affected up to 0.1.2 Fixed in — No fix listed GHSA-9hfg-pxr6-q4vp
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:crypto2_project:crypto2:*:*:*:*:*:rust:*:* | all versions | Vulnerable | Crypto2 Project |
- cpe:2.3:a:crypto2_project:crypto2:*:*:*:*:*:rust:*:* Versions all versions Vulnerable ·Crypto2 Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-45709
- 2026-10-03 Alias added: GHSA-9hfg-pxr6-q4vp
References
Sources
- CVE-2021-45709 · CVE Program
- CVE-2021-45709 · NVD
- FIRST EPSS
- GHSA-9hfg-pxr6-q4vp · GitHub Advisory Database · CC BY 4.0
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