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CVE-2020-36449

Command injection in kekbit

8.1 HighFix available

An issue was discovered in the kekbit crate before 0.3.4 for Rust. For ShmWriter<H>, Send is implemented without requiring H: Send.

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
High
Integrity
High
Availability
High

Exploit likelihood

1.25%Up 0.6 points since Aug 8, 2021
90%50%10%1%

What each source reports

NVD Score used 8.1

An issue was discovered in the kekbit crate before 0.3.4 for Rust. For ShmWriter<H>, Send is implemented without requiring H: Send.

Record
CVE-2020-36449
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-77
Updated
2026-11-02
CVE List No score

An issue was discovered in the kekbit crate before 0.3.4 for Rust. For ShmWriter<H>, Send is implemented without requiring H: Send.

Record
CVE-2020-36449
Updated
2026-11-02
EUVDEUVD-2021-1717 No score

An issue was discovered in the kekbit crate before 0.3.4 for Rust. For ShmWriter<H>, Send is implemented without requiring H: Send.

Record
EUVD-2021-1717
Updated
2026-11-03
GitHub AdvisoriesGHSA-g83m-67wh-whpw 8.1

Command injection in kekbit

An issue was discovered in the kekbit crate before 0.3.4 for Rust. For ShmWriter<H>, Send is implemented without requiring H: Send.

Record
GHSA-g83m-67wh-whpw
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-77
Updated
2026-11-02
OSVGHSA-g83m-67wh-whpw 8.1

Command injection in kekbit

An issue was discovered in the kekbit crate before 0.3.4 for Rust. For ShmWriter<H>, Send is implemented without requiring H: Send.

Record
GHSA-g83m-67wh-whpw
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-77
Updated
2026-11-02
OSVRUSTSEC-2020-0129 8.1

ShmWriter allows sending non-Send type across threads

Affected versions of this crate implement Send for ShmWriter<H> without requiring H: Send. This allows users to send H: !Send to other threads, which can potentially lead to data races and undefined behavior.

Record
RUSTSEC-2020-0129
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kekbit
crates.io
before 0.3.4
0.3.4
kekbit
crates.io
0.0.0-0 up to 0.3.4
0.3.4

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-36449 is a high vulnerability (CVSS 8.1) in Kekbit Project Kekbit, published December 18, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.25%, the 69th percentile. Fixed in kekbit 0.3.4.

References

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