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

Quick assessment

Affected
HashiCorp Vault
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HashiCorp Vault和HashiCorp Vault Enterprise都是美国HashiCorp公司的产品。HashiCorp Vault是一款私钥访问管理工具。HashiCorp Vault Enterprise是一个企业信息归档平台。 HashiCorp Vault 2.0.0之前版本、Vault Enterprise 2.0.0之前版本、1.21.5之前版本、1.20.10之前版本和1.19.16之前版本存在安全漏洞，该漏洞源于具有访问权限的认证用户可能删除未授权的密钥，可能导致拒绝服

CVSS 8.1 · High EPSS 0.50% · P41

Affected Version Matrix 2

VendorProduct Version RangeStatus
HashiCorp Vault 0.10.0< 2.0.0 affected
HashiCorp Vault Enterprise 0.10.0< 2.0.0 affected
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I. Basic Information for CVE-2026-3605

Vulnerability Information
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Vulnerability Title
Vault KVv2 Metadata and Secret Deletion Policy Bypass Denial-of-Service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
HashiCorp Vault和HashiCorp Vault Enterprise 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HashiCorp Vault和HashiCorp Vault Enterprise都是美国HashiCorp公司的产品。HashiCorp Vault是一款私钥访问管理工具。HashiCorp Vault Enterprise是一个企业信息归档平台。 HashiCorp Vault 2.0.0之前版本、Vault Enterprise 2.0.0之前版本、1.21.5之前版本、1.20.10之前版本和1.19.16之前版本存在安全漏洞，该漏洞源于具有访问权限的认证用户可能删除未授权的密钥，可能导致拒绝服
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
HashiCorp Vault 0.10.0 ~ 2.0.0 -
HashiCorp Vault Enterprise 0.10.0 ~ 2.0.0 -

II. Public POCs for CVE-2026-3605

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III. Intelligence Information for CVE-2026-3605

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Other References for CVE-2026-3605 (1)

Same Patch Batch · HashiCorp · 2026-04-17 · 4 CVEs total

CVE-2026-4525 7.5 HIGH Vault Token Leaked to Backends via Authorization: Bearer Passthrough Header
CVE-2026-5807 7.5 HIGH Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Oper
CVE-2026-5052 5.3 MEDIUM Vault Vulnerable to Server-Side Request Forgery in ACME Challenge Validation via Attacker-

IV. Related Vulnerabilities

Same product: Vault
Same vendor: HashiCorp
Same weakness: CWE-288

V. Comments for CVE-2026-3605

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