Where
AND
-Infinity
0
Severity
8.2
Buffer Overflow, Input Validation, Use After Free, Integer Overflow, Race Condition
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

AMD. A buffer overflow issue was addressed with improved memory handling.

1 / 72
Source: Apple
First published (updated )
Severity
6.8
XEE
AV:N/AC:M/Au:N/C:P/I:P/A:P

As reported on oss-security [1]:

So here are the CVE's for the two big ones, libxml2 and expat. Both are affected by the expansion of internal entities (which can be used to consume resources) and external entities (which can cause a denial of service against other services, be used to port scan, etc.).

To be clear:

==================== Internal entity expansion refers to the exponential/quadratic/fast linear expansion of XML entities, e.g.: ==================== <!DOCTYPE xmlbomb [ <!ENTITY a "1234567890" > <!ENTITY b "&a;&a;&a;&a;&a;&a;&a;&a;"> <!ENTITY c "&b;&b;&b;&b;&b;&b;&b;&b;"> <!ENTITY d "&c;&c;&c;&c;&c;&c;&c;&c;"> ]> <bomb>&d;</bomb>

or

<!DOCTYPE bomb [ <!ENTITY a "xxxxxxx... a couple of ten thousand chars"> ]> <bomb>&a;&a;&a;... repeat</bomb>

Which causes resources to be consumed

... Please use CVE-2013-0340 for expat internal entity expansion

[1] http://www.openwall.com/lists/oss-security/2013/02/22/4

1 / 4
Source: Red Hat
First published (updated )
Severity
7.6
Input Validation, Command Injection
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

A command injection vulnerability was found in Python 2.x and 3.x, specifically within the mailcap module. Mailcap core-module is based on the format documented in RFC 1524. The “findmatch()” function does not sanitise the second argument (filename). As a result, the legitimate command (that is used for opening the specified mime type) is concatenated with an arbitrary command, injected by an attacker.

1 / 5
Source: Red Hat
First published (updated )
Severity
7.5
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

A vulnerability was discovered in Python. A quadratic algorithm exists when processing inputs to the IDNA (RFC 3490) decoder, such that a crafted unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor, which could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied hostname.

1 / 5
First published (updated )
Severity
5.7
Path Traversal, Infoleak
AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

A flaw was found in Python 3's pydoc. This flaw allows a local or adjacent attacker who discovers or can convince another local or adjacent user to start a pydoc server to access the server and then use it to disclose sensitive information belonging to the other user that they would not normally have the ability to access. The highest threat from this vulnerability is to data confidentiality.

1 / 5
First published (updated )
Severity
9.8
Buffer Overflow
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

A flaw was found in python. A stack-based buffer overflow was discovered in the ctypes module provided within Python. Applications that use ctypes without carefully validating the input passed to it may be vulnerable to this flaw, which would allow an attacker to overflow a buffer on the stack and crash the application. The highest threat from this vulnerability is to system availability.

1 / 5
First published (updated )
Severity
6.5
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Last updated 25 August 2025

1 / 4
Source: Ubuntu
First published (updated )
Severity
5.5
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

In Python (CPython) 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1, an insecure dependency load upon launch on Windows 7 may result in an attacker's copy of api-ms-win-core-path-l1-1-0.dll being loaded and used instead of the system's copy. Windows 8 and later are unaffected.

1 / 2
First published (updated )
Severity
6.5
CRLF Injection
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

A CRLF injection flaw was discovered in python in the way URLs are handled when doing an HTTP/HTTPS connection (e.g. through urlopen() or HTTPConnection). An attacker who can control the url parameter passed to urlopen method in the urllib/urllib2 modules can inject CRLF sequences and HTTP headers by abusing the "host" part of the URL.

1 / 4
First published (updated )
Severity
9.8
Input Validation, SSRF
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

A flaw was found in python-ipaddress. Improper input validation of octal strings in stdlib ipaddress allows unauthenticated remote attackers to perform indeterminate SSRF, RFI, and LFI attacks on many programs that rely on Python stdlib ipaddress. The highest threat from this vulnerability is to data integrity and system availability.

1 / 4
First published (updated )
Severity
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

A vulnerability was found in Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created.

References: https://bugs.python.org/issue41004 https://github.com/python/cpython/pull/20956

1 / 4
Source: Red Hat

Remedy

As a short term solution, if your application is using the IPv4Interface/IPv6Interface classes as keys of a dictionary, it is possible to patch the __hash__ method of those classes to not be constant. ``` IPv4Interface.__hash__ = lambda self: hash((self._ip, self._prefixlen, int(self.network.network_address))) IPv6Interface.__hash__ = lambda self: hash((self._ip, self._prefixlen, int(self.network.network_address))) ```
First published (updated )
Severity
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

BZ2decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors.

1 / 4
Source: Launchpad
First published (updated )
Severity
7.5
Input Validation
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

An issue in the urllib.parse component of Python before 3.11.4 allows attackers to bypass blocklisting methods by supplying a URL that starts with blank characters.

1 / 4
Source: Launchpad
First published (updated )
Severity
7.5
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

1 / 4
First published (updated )
Severity
6.5
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Last updated 25 August 2025

1 / 4
Source: Ubuntu
First published (updated )
Severity
5.9
AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H

Python CPython could allow a remote attacker to bypass security restrictions, caused by a web cache poisoning flaw via urllib.parse.parseqsl and urllib.parse.parseqs. By sending a specially-crafted request parameter cloaking, an attacker could exploit this vulnerability to cause a difference in the interpretation of the request between the proxy and the server.

1 / 4
Source: IBM
First published (updated )
Severity
5.3
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which otherwise would not have been possible.

1 / 4
First published (updated )
Severity
7.4
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

DISPUTED Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection against multiple (/) at the beginning of URI path which may leads to information disclosure. NOTE: this is disputed by a third party because the http.server.html documentation page states "Warning: http.server is not recommended for production. It only implements basic security checks."

1 / 6
First published (updated )
Severity
7.5
Input Validation
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks.

1 / 5
First published (updated )
Severity
7.5
Input Validation
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

A flaw was found in python. In Lib/tarfile.py an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because procpax lacks header validation.

1 / 4

Remedy

This flaw can be mitigated by not opening untrusted files with tarfile.
First published (updated )

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203