CVE-2023-0821

Nomad Client Vulnerable to Decompression Bombs in Artifact Block

6.5 MediumFix available

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.80%Down 0.1 points since Feb 17, 2023

What each source reports

CVE List Score used 6.5

Nomad Client Vulnerable to Decompression Bombs in Artifact Block

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

Record: CVE-2023-0821
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-409
Updated: 2026-11-02

EUVDEUVD-2023-0807 6.5

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

Record: EUVD-2023-0807
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-w479-w22g-cffh 6.5

Uncontrolled Resource Consumption in Hashicorp Nomad

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

Record: GHSA-w479-w22g-cffh
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

NVD 6.5

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

Record: CVE-2023-0821
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-409
Updated: 2026-11-02

OSV 6.5

Nomad Client Vulnerable to Decompression Bombs in Artifact Block

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

Record: CVE-2023-0821
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-409
Updated: 2026-11-02

OSVGHSA-w479-w22g-cffh 6.5

Uncontrolled Resource Consumption in Hashicorp Nomad

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

Record: GHSA-w479-w22g-cffh
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

OSVUBUNTU-CVE-2023-0821 6.5

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

Record: UBUNTU-CVE-2023-0821
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVGO-2023-1581 No score

Uncontrolled Resource Consumption in Hashicorp Nomad in github.com/hashicorp/nomad

Uncontrolled Resource Consumption in Hashicorp Nomad in github.com/hashicorp/nomad

Record: GO-2023-1581
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`github.com/hashicorp/nomad` Go	1.2.15 up to 1.2.16	1.2.16
`github.com/hashicorp/nomad` Go	1.3.0 up to 1.3.9	1.3.9
`github.com/hashicorp/nomad` Go	1.4.0 up to 1.4.4	1.4.4
`github.com/hashicorp/nomad` Go	1.2.15 up to 1.2.16, 1.3.0 up to 1.3.9, 1.4.0 up to 1.4.4	1.2.161.3.91.4.4
`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
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2023-0821 is a medium vulnerability (CVSS 6.5) in Hashicorp Nomad, published February 16, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.80%, the 56th percentile. Fixed in github.com/hashicorp/nomad 1.2.16.

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

Affected products

Affected packages

History

In short

References