An issue was discovered in the futures-util crate before 0.3.7 for Rust.
Priority LOW 21CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- 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 futures-util crate before 0.3.7 for Rust. MutexGuard::map can cause a data race for certain closure situations (in safe code).
Why it matters now
EPSS 0.00264 18th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed futures-util (crates.io): 0.3.7
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 |
| — | futures-util (crates.io) | 0.3.2 to before 0.3.7 | 0.3.7 | Patch available | GHSA-rh4w-94hh-9943 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- futures-util (crates.io) Vendor— Affected 0.3.2 to before 0.3.7 Fixed in 0.3.7 Patch available GHSA-rh4w-94hh-9943
Remediation
- Fix · GHSA-rh4w-94hh-9943 futures-util (crates.io) Fixed in 0.3.7 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-35905
- 2026-10-03 Alias added: GHSA-rh4w-94hh-9943
References
More rust-lang Future-utils vulnerabilities
- TI-2020-18351 An issue was discovered in the futures-util crate before 0.3.2 for Rust. CVSS 3.1MEDIUM 5.5
Sources
- CVE-2020-35905 · CVE Program
- CVE-2020-35905 · NVD
- FIRST EPSS
- GHSA-rh4w-94hh-9943 · GitHub Advisory Database · CC BY 4.0
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