- Latest release
- Not known: cve.now hasn't read this package's releases
- Newest unaffected release
- Not known without release data
- Advisories
- 5 · 1 high, 1 low
- Weekly downloads
- 43.4M
- Dependents
- 5,132
- Registry
- PyPI
Advisories 5
- CVE-2026-27459High 7.2
pyOpenSSL DTLS cookie callback buffer overflow
Affected: from 22.0.0, fixed in 26.0.0.
- CVE-2026-27448Low 1.7
pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback
Affected: from 0.14.0, fixed in 26.0.0; from 0.14, fixed in 26.0.0.
- CVE-2018-1000808Unrated
Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last…
Affected: fixed in 17.5.0.
- CVE-2018-1000807Unrated
Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object…
Affected: fixed in 17.5.0.
- CVE-2013-4314Unrated
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a '\0' character in a domain name in the Subject Alternative Name…
Affected: fixed in 0.13.1.