An issue was discovered in the messagepack-rs crate through 2021-01-26 for Rust.
Priority MEDIUM 45CWE-908Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
An issue was discovered in the messagepack-rs crate through 2021-01-26 for Rust. deserialize_extension_others may read from uninitialized memory locations.
Why it matters now
EPSS 0.01417 72nd 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 |
| — | messagepack-rs (crates.io) | up to 0.8.1 | — | No fix listed | GHSA-hr52-f9vp-582c |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- messagepack-rs (crates.io) Vendor— Affected up to 0.8.1 Fixed in — No fix listed GHSA-hr52-f9vp-582c
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:messagepack-rs_project:messagepack-rs:*:*:*:*:*:rust:*:* | before 0.8.1 | Vulnerable | Messagepack-rs Project |
- cpe:2.3:a:messagepack-rs_project:messagepack-rs:*:*:*:*:*:rust:*:* Versions before 0.8.1 Vulnerable ·Messagepack-rs Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-45692
- 2026-10-03 Alias added: GHSA-hr52-f9vp-582c
References
Advisory 3
More Messagepack-rs Project Messagepack-rs vulnerabilities
- TI-2021-20780 An issue was discovered in the messagepack-rs crate through 2021-01-26 for Rust. CVSS 3.1CRITICAL 9.8
- TI-2021-20778 An issue was discovered in the messagepack-rs crate through 2021-01-26 for Rust. CVSS 3.1CRITICAL 9.8
- TI-2021-20777 An issue was discovered in the messagepack-rs crate through 2021-01-26 for Rust. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-45692 · CVE Program
- CVE-2021-45692 · NVD
- FIRST EPSS
- GHSA-hr52-f9vp-582c · GitHub Advisory Database · CC BY 4.0
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