Security Bulletin: Vault Vulnerable to Denial of Service Due to Rate Limit Regression

Summary 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 which allowed for processing JSON payloads before applying rate limits. This vulnerability,...

BIT-VAULT-2025-12044 Vault Vulnerable to Denial of Service Due to Rate Limit Regression

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...

CVE-2025-12044 Vault Vulnerable to Denial of Service Due to Rate Limit Regression

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...

CVE-2025-12044

CVE-2025-12044: Vault and Vault Enterprise are vulnerable to unauthenticated DoS when processing JSON due to a rate-limit regression from HCSEC-2025-24. Affected: Vault Community 1.20.3–1.20.4; Vault Enterprise 1.16.25–1.16.26, 1.19.9–1.19.10, 1.18.14–1.18.15. Fixed in Vault Community 1.21.0 and ...