CVE-2025-4166— Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin
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I. Basic Information for CVE-2025-4166
Vulnerability Information
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Vulnerability Title
Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin
Source: NVD (National Vulnerability Database)
Vulnerability Description
Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过错误消息导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
HashiCorp Vault Enterprise和HashiCorp Vault Community 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HashiCorp Vault Enterprise和HashiCorp Vault Community都是美国HashiCorp公司的产品。HashiCorp Vault Enterprise是一个企业信息归档平台。HashiCorp Vault Community是一款密钥管理引擎。用来集中存储集群运行过程中所需要的秘密信息。 HashiCorp Vault Enterprise和HashiCorp Vault Community存在安全漏洞，该漏洞源于处理畸形有效载荷时可能泄露敏感信息。
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 | 0.3.0 ~ 1.19.2 | - | |
| HashiCorp | Vault Enterprise | 0.10.0 ~ 1.19.2 | - |
II. Public POCs for CVE-2025-4166
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: Vault
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Vault Vulnerable to Denial-of-Service via Unauthenticated Ro - CVE-2026-4525
Vault Token Leaked to Backends via Authorization: Bearer Pas - CVE-2026-5052
Vault Vulnerable to Server-Side Request Forgery in ACME Chal - CVE-2026-3605
Vault KVv2 Metadata and Secret Deletion Policy Bypass Denial - CVE-2025-12044
Vault Vulnerable to Denial of Service Due to Rate Limit Regr
Same vendor: HashiCorp
- CVE-2026-7776
Boundary Workers Vulnerable to Denial of Service During TLS - CVE-2026-5807
Vault Vulnerable to Denial-of-Service via Unauthenticated Ro - CVE-2026-4525
Vault Token Leaked to Backends via Authorization: Bearer Pas - CVE-2026-5052
Vault Vulnerable to Server-Side Request Forgery in ACME Chal - CVE-2026-3605
Vault KVv2 Metadata and Secret Deletion Policy Bypass Denial
Same weakness: CWE-209
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V. Comments for CVE-2025-4166
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