CVE-2026-3605 Vault KVv2 Metadata and Secret Deletion Policy Bypass Denial-of-Service
Authenticated users can delete unauthorized secrets via glob policies, causing denial of service in HashiCorp Vault.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-3605?
CVE-2026-3605 is a high-severity missing authorization vulnerability in Hashicorp Vault, published on 17 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An authenticated user with access to a kvv2 path through a policy containing a glob may be able to delete secrets they were not authorized to read or write, resulting in denial-of-service. This vulnerability did not allow a malicious user to delete secrets across namespaces, nor read any secret data. Fxed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0, 1.21.5, 1.20.10, and 1.19.16.
Which versions are affected by CVE-2026-3605?
4 open source packages ship an affected version, including github.com/hashicorp/vault and vault. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/hashicorp/vault Go | From 0.10.0 | None |
github.com/hashicorp/vault Go | From 0.10.0 to 1.21.4 | None |
github.com/hashicorp/vault Go | From 0.10.0 to 1.21.4 | None |
vault Bitnami | From 0.10.0 | 2.0.0 |
Products include Hashicorp Vault.
How do I fix CVE-2026-3605?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-3605 being exploited?
There is no known exploitation of CVE-2026-3605 in the wild and no public exploit code.
Other vulnerabilities in Hashicorp Vault
Sources
Also known as BIT-vault-2026-3605, GHSA-m2w4-8ggf-rj47, GO-2026-5487, MINI-6x63-w3qm-wv2w, MINI-xqc6-4w2v-rhgh.