CVE-2020-35886 json
Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr
published 2020-08-25 6 y ago modified 2026-06-17 4 mo ago also CVE-2020-35887 , CVE-2020-35888 , GHSA-36xw-hgfv-jwm7 , GHSA-c7fw-cr3w-wvfc , GHSA-fhvj-7f9p-w788 , RUSTSEC-2020-0034 , EUVD-2021-1675
- cvss
- 4.7
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
An issue was discovered in the arr crate through 2020-08-25 for Rust. An attacker can smuggle non-Sync/Send types across a thread boundary to cause a data race.
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 1.9 | AV:L/AC:M/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | arr | <=0.6.1 >=0.0.0-0 |
no fix listed |
Classification
References
-
rustsec.org
/advisories/RUSTSEC-2020-0034.html
web, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-35886
advisory
-
github.com
/sjep/array/issues/1
web, report
-
github.com
/sjep/array
package
-
nvd.nist.gov
/vuln/detail/CVE-2020-35887
advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-35888
advisory
-
crates.io
/crates/arr
package
Sources
- CVE List CVE-2020-35886
- GitHub Advisory GHSA-c7fw-cr3w-wvfc
- GitHub Advisory GHSA-fhvj-7f9p-w788
- GitHub Advisory GHSA-36xw-hgfv-jwm7
- NVD CVE-2020-35886
- OSV RUSTSEC-2020-0034
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