Data races in bunch

published 2020-11-12 5 y ago modified 2026-06-17 4 mo ago also GHSA-jwph-qp5h-f9wj , RUSTSEC-2020-0130 , EUVD-2021-1785

cvss: 8.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits: 0; none known

An issue was discovered in the bunch crate through 2020-11-12 for Rust. There are unconditional implementations of Send and Sync for Bunch<T>.

Patch / fix

links 1

rustsec.org/advisories/RUSTSEC-2020-0130.html advisory

Exploit prediction

1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

rustsec.org https://rustsec.org/advisories/RUSTSEC-2020-0130.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P
OSV	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
crates.io	bunch	<=0.1.0 >=0.0.0-0	no fix listed

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

rustsec.org /advisories/RUSTSEC-2020-0130.html
web, exploit, patch, third-party-advisory, advisory
raw.githubusercontent.com /rustsec/advisory-db/main/crates/bunch/RUSTSEC-2020-0130.md
web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2020-36450
advisory
github.com /krl/bunch/issues/1
web, report
github.com /krl/bunch
package
crates.io /crates/bunch
package

Sources

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.

Summary