CVE-2020-36214
Data races in multiqueue2
An issue was discovered in the multiqueue2 crate before 0.1.7 for Rust. Because a non-Send type can be sent to a different thread, a data race can occur.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in the multiqueue2 crate before 0.1.7 for Rust. Because a non-Send type can be sent to a different thread, a data race can occur.
- Record
CVE-2020-36214- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
An issue was discovered in the multiqueue2 crate before 0.1.7 for Rust. Because a non-Send type can be sent to a different thread, a data race can occur.
- Record
CVE-2020-36214- Updated
- 2026-11-02
EUVDEUVD-2021-1778 No score
An issue was discovered in the multiqueue2 crate before 0.1.7 for Rust. Because a non-Send type can be sent to a different thread, a data race can occur.
- Record
EUVD-2021-1778- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jphw-p3m6-pj3c
Data races in multiqueue2
Affected versions of this crate unconditionally implemented Send for types used in queue implementations (InnerSend<RW, T>, InnerRecv<RW, T>, FutInnerSend<RW, T>, FutInnerRecv<RW, T>).
This allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.
The flaw was corrected in v0.1.7 by adding T: Send bound to to the Send impl of four data types explained above.
- Record
GHSA-jphw-p3m6-pj3c- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-662
- Updated
- 2026-11-02
OSVGHSA-jphw-p3m6-pj3c
Data races in multiqueue2
Affected versions of this crate unconditionally implemented Send for types used in queue implementations (InnerSend<RW, T>, InnerRecv<RW, T>, FutInnerSend<RW, T>, FutInnerRecv<RW, T>).
This allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.
The flaw was corrected in v0.1.7 by adding T: Send bound to to the Send impl of four data types explained above.
- Record
GHSA-jphw-p3m6-pj3c- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-662
- Updated
- 2026-11-02
OSVRUSTSEC-2020-0106
Queues allow non-Send types to be sent to other threads, allowing data races
Affected versions of this crate unconditionally implemented Send for types used in queue implementations (InnerSend<RW, T>, InnerRecv<RW, T>, FutInnerSend<RW, T>, FutInnerRecv<RW, T>).
This allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.
The flaw was corrected in v0.1.7 by adding T: Send bound to to the Send impl of four data types explained above.
- Record
RUSTSEC-2020-0106- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
multiqueue2crates.io |
before 0.1.7 | 0.1.7 |
multiqueue2crates.io |
0.0.0-0 up to 0.1.7 | 0.1.7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-36214 is a medium vulnerability (CVSS 5.9) in Multiqueue2 Project Multiqueue2, published December 19, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.12%, the 66th percentile. Fixed in multiqueue2 0.1.7.