An issue was discovered in the once_cell crate before 1.0.1 for Rust.
Priority LOW 36CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
An issue was discovered in the once_cell crate before 1.0.1 for Rust. There is a panic during initialization of Lazy.
Why it matters now
EPSS 0.01583 75th percentileScored 2026-11-07
Fix Fixed once_cell (crates.io): 1.0.1
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 |
| — | once_cell (crates.io) | 0.2.5 to before 1.0.1 | 1.0.1 | Patch available | GHSA-7j44-fv4x-79g9 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- once_cell (crates.io) Vendor— Affected 0.2.5 to before 1.0.1 Fixed in 1.0.1 Patch available GHSA-7j44-fv4x-79g9
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:once_cell_project:once_cell:*:*:*:*:*:*:*:* | 0.2.6 to before 1.0.1 | Vulnerable | Once Cell Project |
- cpe:2.3:a:once_cell_project:once_cell:*:*:*:*:*:*:*:* Versions 0.2.6 to before 1.0.1 Vulnerable ·Once Cell Project
Remediation
- Fix · GHSA-7j44-fv4x-79g9 once_cell (crates.io) Fixed in 1.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-16141
- 2026-10-03 Alias added: GHSA-7j44-fv4x-79g9
References
Advisory 3
Sources
- CVE-2019-16141 · CVE Program
- CVE-2019-16141 · NVD
- FIRST EPSS
- GHSA-7j44-fv4x-79g9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences