CVE-2025-15346— wolfSSL Python library `CERT_REQUIRED` mode fails to enforce client certificate requirement
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I. Basic Information for CVE-2025-15346
Vulnerability Information
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Vulnerability Title
wolfSSL Python library `CERT_REQUIRED` mode fails to enforce client certificate requirement
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the handling of verify_mode = CERT_REQUIRED in the wolfssl Python package (wolfssl-py) causes client certificate requirements to not be fully enforced. Because the WOLFSSL_VERIFY_FAIL_IF_NO_PEER_CERT flag was not included, the behavior effectively matched CERT_OPTIONAL: a peer certificate was verified if presented, but connections were incorrectly authenticated when no client certificate was provided. This results in improper authentication, allowing attackers to bypass mutual TLS (mTLS) client authentication by omitting a client certificate during the TLS handshake. The issue affects versions up to and including 5.8.2.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
wolfssl-py 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wolfssl-py是wolfSSL开源的一个Python打包工具。 wolfssl-py 5.8.2及之前版本存在安全漏洞，该漏洞源于未完全强制执行客户端证书要求，可能导致身份验证不当和绕过相互TLS客户端身份验证。
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 |
|---|---|---|---|---|
| wolfSSL | wolfSSL-py | 5.3.0 ~ 5.8.2 | - |
II. Public POCs for CVE-2025-15346
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2025-15346
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