CVE-2025-12044

Vault Vulnerable to Denial of Service Due to Rate Limit Regression

Published Oct 23, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-vp5w-xcfc-73wf Hashicorp Vault and Vault Enterprise vulnerable to a denial of service when processing JSON
History
Type Values Removed Values Added
CPEs cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*
cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*
Type Values Removed Values Added
First Time appeared Hashicorp
Hashicorp vault
Hashicorp vault Enterprise
Vendors & Products Hashicorp
Hashicorp vault
Hashicorp vault Enterprise
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Vault Vulnerable to Denial of Service Due to Rate Limit Regression
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
HashiCorp
Published
Updated
Oct 23, 2025, 8:00 PM
Reserved
Oct 21, 2025, 7:12 PM
Status
Analyzed
Published
Oct 23, 2025, 8:15 PM
Modified
Oct 18, 2026, 9:10 PM
Severity
Important
Public date
Oct 23, 2025, 7:15 PM