pyca pyopenssl
2 published vulnerabilities name this product.
As the CNAs write it in their CVE records (vendor and product); the versions are theirs.
| CVE | Vulnerable versions | Title | Severity | Published | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| CVE-2026-27459 | >= 22.0.0, < 26.0.0 | pyOpenSSL DTLS cookie callback buffer overflow | HIGH 7.2 | 0.7 % | ||
| CVE-2026-27448 | >= 0.14.0, < 26.0.0 | pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback | LOW 1.7 | 0.3 % |