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CVE-2026-27459

Medium priority
Fixed

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes,...

1 affected package

pyopenssl

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
pyopenssl Fixed Not affected Not affected Not affected
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CVE-2026-27448

Low priority

Some fixes available 3 of 7

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to `set_tlsext_servername_callback` raised an unhandled exception, this would result in...

1 affected package

pyopenssl

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
pyopenssl Fixed Fixed Needs evaluation Needs evaluation
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CVE-2018-1000808

Medium priority
Fixed

Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that can result in Denial of service if memory runs low...

1 affected package

pyopenssl

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
pyopenssl Not affected
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CVE-2018-1000807

Medium priority
Fixed

Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object handling that can result in Use after free can lead to possible denial of service or remote...

1 affected package

pyopenssl

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
pyopenssl Not affected
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CVE-2013-4314

Medium priority
Fixed

The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL...

1 affected package

pyopenssl

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
pyopenssl
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