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.
| Software | From | Fixed in |
|---|---|---|
github.com/hashicorp/vault
|
1.20.3 | 1.21.0 |
| hashicorp / vault | 1.16.25 | 1.16.27 |
| hashicorp / vault | 1.18.14 | 1.18.15.x |
| hashicorp / vault | 1.19.9 | 1.19.11.x |
| hashicorp / vault | 1.20.3 | 1.20.5 |
| hashicorp / vault | 1.20.3 | 1.21.0 |