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High 7.6CVE-2026-19553 Public exploit
SSLContext.wrap_bio() missing validation of server_hostname parameter
ssl.SSLContext.wrap_bio() didn't require the server_hostname argument to not be None if ssl.SSLContext.check_hostname was set. Due to a missing parameter check in SSLObject, if the server_hostname argument isn't supplied then hostname verification would be si…
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Critical 9.2CVE-2026-19445 Public exploit
Use-after-free of a server-side SSLContext when sni_callback switches contexts
A remote, unauthenticated TLS client can make a server crash or call through a freed pointer if its sni_callback assigns a different context to SSLSocket.context (the documented way to select a certificate per server name) and nothing else keeps the original …
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Medium 5.9CVE-2026-12345 Public exploit
Race condition in tempfile.TemporaryDirectory cleanup allows deleting files outside the temporary directory
The cleanup of tempfile.TemporaryDirectory is vulnerable to a race condition. An attacker who can modify the tree during cleanup can replace a directory with a symbolic link, causing files outside of the temporary directory to be deleted or have their permiss…
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High 7.5CVE-2024-6232 Public exploit
Regular-expression DoS when parsing TarFile headers
There is a MEDIUM severity vulnerability affecting CPython. Regular expressions that allowed excessive backtracking during tarfile.TarFile header parsing are vulnerable to ReDoS via specifically-crafted tar archives.
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Unscored —CVE-2022-48565 Public exploit
An XML External Entity (XXE) issue was discovered in Python through 3.9.1. The plistlib module no longer accepts entity…
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High 7.5
An issue in the urllib.parse component of Python before 3.11.4 allows attackers to bypass blocklisting methods by suppl…
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High 7.8CVE-2015-20107 Public exploit
In Python (aka CPython) up to 3.10.8, the mailcap module does not add escape characters into commands discovered in the…
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Unscored —
The CGIHTTPServer module in Python 2.7.5 and 3.3.4 does not properly handle URLs in which URL encoding is used for path…
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Medium 5.9
An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.…
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Unscored —
Python Software Foundation Python (CPython) version 2.7 contains a CWE-77: Improper Neutralization of Special Elements …
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Low 3.6CVE-2018-1000030 Public exploit
Python 2.7.14 is vulnerable to a Heap-Buffer-Overflow as well as a Heap-Use-After-Free. Python versions prior to 2.7.14…
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Unscored —
The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an …
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Unscored —CVE-2016-5699 Public exploit
CRLF injection vulnerability in the HTTPConnection.putheader function in urllib2 and urllib in CPython (aka Python) bef…
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Unscored —
Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3…
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Critical 9.8
Directory traversal vulnerability in the (1) extract and (2) extractall functions in the tarfile module in Python allow…