Description
Vault's ACL policy cache allowed namespace traversal when policy names contained path traversal constructs. This may allow a token assigned specially crafted policy names to use the capabilities of policies defined in other namespaces, including the root namespace. This vulnerability (CVE-2026-105820) is fixed in Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23. Vault Community Edition does not support namespaces, and is not affected.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| HashiCorp | Vault Enterprise | 0.0.1 – < 2.1.2 | 2.1.2 |
Advisories 1
- WID-SEC-2026-3803 Hashicorp Vault: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 7, 2026