CVE-2020-36469 json
Data races in appendix
published 2020-11-15 5 y ago modified 2026-06-17 4 mo ago also GHSA-fvhr-7j8m-3cvc , RUSTSEC-2020-0149 , EUVD-2021-1708
- cvss
- 5.9
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 62%
- public exploits
- 0
- none known
Summary
An issue was discovered in the appendix crate through 2020-11-15 for Rust. For the generic K and V type parameters, Send and Sync are implemented unconditionally.
Patch / fix
Exploit prediction
0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- rustsec.org https://rustsec.org/advisories/RUSTSEC-2020-0149.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | appendix | <=0.2.0 >=0.0.0-0 |
no fix listed |
Classification
- Weakness
-
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
References
-
rustsec.org
/advisories/RUSTSEC-2020-0149.html
web, exploit, issue-tracking, patch, third-party-advisory, advisory
-
raw.githubusercontent.com
/rustsec/advisory-db/main/crates/appendix/RUSTSEC-2020-0149.md
third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-36469
advisory
-
github.com
/krl/appendix/issues/6
web, report
-
github.com
/krl/appendix
package
-
crates.io
/crates/appendix
package
Sources
- CVE List CVE-2020-36469
- GitHub Advisory GHSA-fvhr-7j8m-3cvc
- NVD CVE-2020-36469
- OSV RUSTSEC-2020-0149
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.