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2 vulnerabilities found for wolfSSL-py by wolfSSL
CVE-2025-15346 (GCVE-0-2025-15346)
Vulnerability from nvd – Published: 2026-01-07 23:32 – Updated: 2026-01-08 19:22 X_Open Source
VLAI?
Title
wolfSSL Python library `CERT_REQUIRED` mode fails to enforce client certificate requirement
Summary
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.
Severity ?
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| wolfSSL | wolfSSL-py |
Affected:
5.3.0 , ≤ 5.8.2
(python)
|
Credits
Matan Radomski
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CVE-2025-15346 (GCVE-0-2025-15346)
Vulnerability from cvelistv5 – Published: 2026-01-07 23:32 – Updated: 2026-01-08 19:22 X_Open Source
VLAI?
Title
wolfSSL Python library `CERT_REQUIRED` mode fails to enforce client certificate requirement
Summary
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.
Severity ?
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| wolfSSL | wolfSSL-py |
Affected:
5.3.0 , ≤ 5.8.2
(python)
|
Credits
Matan Radomski
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