CVE-2023-0821

Nomad Client Vulnerable to Decompression Bombs in Artifact Block

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-02-13 CVE Reserved
2023-02-16 CVE Published
2025-03-18 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)

CAPEC

CAPEC-572: Artificially Inflate File Sizes

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://discuss.hashicorp.com/t/hcsec-2023-05-nomad-client-vulnerable-to-decompression-bombs-in-artifact-block/50292	2023-02-25

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Hashicorp Search vendor "Hashicorp"		Nomad Search vendor "Hashicorp" for product "Nomad"				< 1.2.15 Search vendor "Hashicorp" for product "Nomad" and version " < 1.2.15"		-		Affected
Hashicorp Search vendor "Hashicorp"		Nomad Search vendor "Hashicorp" for product "Nomad"				< 1.2.15 Search vendor "Hashicorp" for product "Nomad" and version " < 1.2.15"		enterprise		Affected
Hashicorp Search vendor "Hashicorp"		Nomad Search vendor "Hashicorp" for product "Nomad"				>= 1.3.0 < 1.3.9 Search vendor "Hashicorp" for product "Nomad" and version " >= 1.3.0 < 1.3.9"		-		Affected
Hashicorp Search vendor "Hashicorp"		Nomad Search vendor "Hashicorp" for product "Nomad"				>= 1.3.0 < 1.3.9 Search vendor "Hashicorp" for product "Nomad" and version " >= 1.3.0 < 1.3.9"		enterprise		Affected
Hashicorp Search vendor "Hashicorp"		Nomad Search vendor "Hashicorp" for product "Nomad"				>= 1.4.0 < 1.4.4 Search vendor "Hashicorp" for product "Nomad" and version " >= 1.4.0 < 1.4.4"		-		Affected
Hashicorp Search vendor "Hashicorp"		Nomad Search vendor "Hashicorp" for product "Nomad"				>= 1.4.0 < 1.4.4 Search vendor "Hashicorp" for product "Nomad" and version " >= 1.4.0 < 1.4.4"		enterprise		Affected