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CVE-2021-3283

Improper Privilege Management in HashiCorp Nomad

7.5 HighFix available

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

1.47%Up 1.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Record
CVE-2021-3283
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Updated
2026-11-02
CVE List No score

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Record
CVE-2021-3283
Updated
2026-11-02
EUVDEUVD-2021-1249 No score

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Record
EUVD-2021-1249
Updated
2026-11-03
GitHub AdvisoriesGHSA-35qp-xq9f-2rjx 7.5

Improper Privilege Management in HashiCorp Nomad

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Record
GHSA-35qp-xq9f-2rjx
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-269
Updated
2026-11-02
OSVALPINE-CVE-2021-3283 7.5

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Record
ALPINE-CVE-2021-3283
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-03
OSV 7.5

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Record
CVE-2021-3283
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVGHSA-35qp-xq9f-2rjx 7.5

Improper Privilege Management in HashiCorp Nomad

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Record
GHSA-35qp-xq9f-2rjx
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-269
Updated
2026-11-02
OSVUBUNTU-CVE-2021-3283 7.5

HashiCorp Nomad and Nomad Enterprise up to 0.12.9 exec and java task drivers can access processes associated with other tasks on the same node. Fixed in 0.12.10, and 1.0.3.

Record
UBUNTU-CVE-2021-3283
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVGO-2022-0622 No score

Improper Privilege Management in HashiCorp Nomad in github.com/hashicorp/nomad

Improper Privilege Management in HashiCorp Nomad in github.com/hashicorp/nomad

Record
GO-2022-0622
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/hashicorp/nomad
Go
1.0.0 up to 1.0.3
1.0.3
github.com/hashicorp/nomad
Go
before 0.12.10
0.12.10
nomad
Alpine:v3.13
1.0.0 up to 0.12.10-r0
0.12.10-r0
nomad
Alpine:v3.14
1.0.0 up to 1.0.4-r0
1.0.4-r0
nomad
Alpine:v3.15
1.0.0 up to 1.0.4-r0
1.0.4-r0
nomad
Alpine:v3.16
1.0.0 up to 1.0.4-r0
1.0.4-r0
nomad
Alpine:v3.17
1.0.0 up to 1.0.4-r0
1.0.4-r0
nomad
Alpine:v3.18
1.0.0 up to 1.0.4-r0
1.0.4-r0
github.com/hashicorp/nomad
Go
before 0.12.10, 1.0.0 up to 1.0.3
0.12.101.0.3
nomad
Ubuntu:18.04:LTS
All versions, plus listed versions
0.4.0+dfsg-1
None known
nomad
Ubuntu:20.04:LTS
All versions, plus listed versions
0.8.7+dfsg1-1ubuntu1
None known

History

History
RecordedChangedSources
affected, aliases, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2021-3283 is a high vulnerability (CVSS 7.5) in Hashicorp Nomad, published February 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.47%, the 73rd percentile. Fixed in github.com/hashicorp/nomad 1.0.3.

References

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