Nomad Client Vulnerable to Decompression Bombs in Artifact Block
Priority LOW 30CWE-409Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00795 56th percentileScored 2026-11-07
Fix Fixed github.com/hashicorp/nomad (Go): 1.2.16, 1.3.9, 1.4.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HashiCorp | Nomad | up to 1.2.15; up to 1.3.8; up to 1.4.3 | — | No fix listed | CNA |
| HashiCorp | Nomad Enterprise | up to 1.2.15; up to 1.3.8; up to 1.4.3 | — | No fix listed | CNA |
| — | github.com/hashicorp/nomad (Go) | 1.2.15 to before 1.2.16 | 1.2.16 | Patch available | GHSA-w479-w22g-cffh |
| — | github.com/hashicorp/nomad (Go) | 1.3.0 to before 1.3.9 | 1.3.9 | Patch available | GHSA-w479-w22g-cffh |
| — | github.com/hashicorp/nomad (Go) | 1.4.0 to before 1.4.4 | 1.4.4 | Patch available | GHSA-w479-w22g-cffh |
- Nomad VendorHashiCorp Affected up to 1.2.15; up to 1.3.8; up to 1.4.3 Fixed in — No fix listed CNA
- Nomad Enterprise VendorHashiCorp Affected up to 1.2.15; up to 1.3.8; up to 1.4.3 Fixed in — No fix listed CNA
- github.com/hashicorp/nomad (Go) Vendor— Affected 1.2.15 to before 1.2.16 Fixed in 1.2.16 Patch available GHSA-w479-w22g-cffh
- github.com/hashicorp/nomad (Go) Vendor— Affected 1.3.0 to before 1.3.9 Fixed in 1.3.9 Patch available GHSA-w479-w22g-cffh
- github.com/hashicorp/nomad (Go) Vendor— Affected 1.4.0 to before 1.4.4 Fixed in 1.4.4 Patch available GHSA-w479-w22g-cffh
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hashicorp:nomad:*:*:*:*:-:*:*:* | before 1.2.15 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:nomad:*:*:*:*:enterprise:*:*:* | before 1.2.15 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:nomad:*:*:*:*:-:*:*:* | 1.3.0 to before 1.3.9 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:nomad:*:*:*:*:enterprise:*:*:* | 1.3.0 to before 1.3.9 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:nomad:*:*:*:*:-:*:*:* | 1.4.0 to before 1.4.4 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:nomad:*:*:*:*:enterprise:*:*:* | 1.4.0 to before 1.4.4 | Vulnerable | HashiCorp |
- cpe:2.3:a:hashicorp:nomad:*:*:*:*:-:*:*:* Versions before 1.2.15 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:nomad:*:*:*:*:enterprise:*:*:* Versions before 1.2.15 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:nomad:*:*:*:*:-:*:*:* Versions 1.3.0 to before 1.3.9 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:nomad:*:*:*:*:enterprise:*:*:* Versions 1.3.0 to before 1.3.9 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:nomad:*:*:*:*:-:*:*:* Versions 1.4.0 to before 1.4.4 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:nomad:*:*:*:*:enterprise:*:*:* Versions 1.4.0 to before 1.4.4 Vulnerable ·HashiCorp
Remediation
- Fix · GHSA-w479-w22g-cffh github.com/hashicorp/nomad (Go) Fixed in 1.2.16 Advisory →
- Fix · GHSA-w479-w22g-cffh github.com/hashicorp/nomad (Go) Fixed in 1.3.9 Advisory →
- Fix · GHSA-w479-w22g-cffh github.com/hashicorp/nomad (Go) Fixed in 1.4.4 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 6 products
- Logging Subsystem for Red Hat OpenShift
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Dev Spaces
- Red Hat Openshift Container Storage 4
- Red Hat Openshift Data Foundation 4
Timeline
- 2026-10-02 Threatist record created from CVE-2023-0821
- 2026-10-03 Alias added: GHSA-w479-w22g-cffh
References
More HashiCorp Nomad vulnerabilities
- TI-2019-09419 HashiCorp Nomad 0.9.0 through 0.9.1 has Incorrect Access Control via the exec driver. CVSS 3.0CRITICAL 9.8
- TI-2022-12559 HashiCorp Nomad and Nomad Enterprise version 0.2.0 up to 1.3.0 were impacted by go-getter… CVSS 3.1CRITICAL 9.8
- TI-2023-01674 Nomad Unauthenticated Client Agent HTTP Request Privilege Escalation CVSS 3.1CRITICAL 10.0
- TI-2020-06436 HashiCorp Nomad and Nomad Enterprise up to 0.10.2 incorrectly validated role/region… CVSS 3.1CRITICAL 9.8
- TI-2020-16532 HashiCorp Nomad and Nomad Enterprise version 0.9.0 up to 0.12.5 client file sandbox… CVSS 3.1CRITICAL 9.1
- TI-2021-19357 HashiCorp Nomad and Nomad Enterprise up to 1.0.13, 1.1.7, and 1.2.0, with the QEMU task… CVSS 3.1HIGH 8.8
Sources
- CVE-2023-0821 · CVE Program
- CVE-2023-0821 · NVD
- FIRST EPSS
- GHSA-w479-w22g-cffh · GitHub Advisory Database · CC BY 4.0
- CVE-2023-0821 · Red Hat security data · CC BY 4.0
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