CVE-2025-12044

Vault and Vault Enterprise (“Vault”) are vulnerable to an unauthenticated denial of service when processing JSON payloads. This occurs due to a regression from a previous fix for [+HCSEC-2025-24+|https://discuss.hashicorp.com/t/hcsec-2025-24-vault-denial-of-service-though-complex-json-payloads/76393] which allowed for processing JSON payloads before applying rate limits. This vulnerability, CVE-2025-12044, is fixed in Vault Community Edition 1.21.0 and Vault Enterprise 1.16.27, 1.19.11, 1.20.5, and 1.21.0.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.hashicorp.com/t/hcsec-2025-31-vault-vulnerable-to-denial-of-service-due-to-rate-limit-regression/76710	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:hashicorp:vault:::::enterprise:::*
	cpe:2.3:a:hashicorp:vault:::::enterprise:::*
	cpe:2.3:a:hashicorp:vault:::::enterprise:::*
	cpe:2.3:a:hashicorp:vault:::::enterprise:::*
	cpe:2.3:a:hashicorp:vault:::::-:::*

History

23 Dec 2025, 20:26

Type	Values Removed	Values Added
References	~~() https://discuss.hashicorp.com/t/hcsec-2025-31-vault-vulnerable-to-denial-of-service-due-to-rate-limit-regression/76710 -~~	() https://discuss.hashicorp.com/t/hcsec-2025-31-vault-vulnerable-to-denial-of-service-due-to-rate-limit-regression/76710 - Vendor Advisory
First Time		Hashicorp vault Hashicorp
CPE		cpe:2.3:a:hashicorp:vault:::::-:::* cpe:2.3:a:hashicorp:vault:::::enterprise:::*

23 Oct 2025, 20:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-23 20:15

Updated : 2025-12-23 20:26

NVD link : CVE-2025-12044

Mitre link : CVE-2025-12044

CVE.ORG link : CVE-2025-12044

JSON object : View

Products Affected

hashicorp

vault

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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