Advisoriesby IbisVaultGHSA-vp5w-xcfc-73wf
Hashicorp Vault and Vault Enterprise vulnerable to a denial of service when processing JSON
Fix: upgrade to 1.21.0 or later
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| github.com/hashicorp/vault Go | >= 1.20.3, < 1.21.0 | 1.21.0 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-770
- Also known as
- BIT-vault-2025-12044, CVE-2025-12044, GO-2025-4071
- nvd.nist.gov/vuln/detail/CVE-2025-12044
- github.com/hashicorp/vault/commit/b19e74c29a33ed2a99fc01626104db1a49345df3
- github.com/hashicorp/vault/commit/eedc2b7426f30e57e306229ce697ce81e203ab89
- discuss.hashicorp.com/t/hcsec-2025-31-vault-vulnerable-to-denial-of-service-due-to-rate-limit-regression/76710
- github.com/hashicorp/vault
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