CVE-2025-12044

HighCVSS 7.5/10Last modified Oct 18, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-770

Affected software

Vendor	Product	Versions
HashiCorp	Vault	>= 1.20.3, < 1.21.0
HashiCorp	Vault Enterprise	>= 1.20.3, < 1.21.0; >= 1.19.9, < 1.19.11; >= 1.18.14, < 1.18.15; >= 1.16.25, < 1.16.27

References

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

Timeline

Published: Oct 23, 2025
Last modified: Oct 18, 2026
NVD status: Analyzed

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