An issue was discovered in the crossbeam crate before 0.4.1 for Rust.
Priority MEDIUM 46CWE-415Published · 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
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-415 and the CVSS impact.
Summary
An issue was discovered in the crossbeam crate before 0.4.1 for Rust. There is a double free because of destructor mishandling.
Why it matters now
EPSS 0.01744 77th percentileScored 2026-11-07
Fix Fixed crossbeam (crates.io): 0.4.1
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 |
| — | crossbeam (crates.io) | 0.4.0 to before 0.4.1 | 0.4.1 | Patch available | GHSA-c3cw-c387-pj65 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- crossbeam (crates.io) Vendor— Affected 0.4.0 to before 0.4.1 Fixed in 0.4.1 Patch available GHSA-c3cw-c387-pj65
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:crossbeam_project:crossbeam:*:*:*:*:*:*:*:* | before 0.4.1 | Vulnerable | crossbeam-rs |
- cpe:2.3:a:crossbeam_project:crossbeam:*:*:*:*:*:*:*:* Versions before 0.4.1 Vulnerable ·crossbeam-rs
Remediation
- Fix · GHSA-c3cw-c387-pj65 crossbeam (crates.io) Fixed in 0.4.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-20996
- 2026-10-03 Alias added: GHSA-c3cw-c387-pj65
References
More crossbeam-rs Crossbeam vulnerabilities
- TI-2022-07691 Improper Restriction of Operations within the Bounds of a Memory Buffer and Race Condition in crossbeam-utils CVSS 3.1HIGH 8.1
- TI-2020-12026 Undefined Behavior in bounded Crossbeam channel CVSS 3.1CRITICAL 9.8
- TI-2021-12475 Data race in crossbeam-deque CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-20996 · CVE Program
- CVE-2018-20996 · NVD
- FIRST EPSS
- GHSA-c3cw-c387-pj65 · GitHub Advisory Database · CC BY 4.0
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