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Python 3.9 – Schwachstellen

46 bekannte CVEs betreffen die Versionslinie 3.9 von Python.

9.8 max. CVSSSupport beendet am 2025-10-31

Behoben in

3.9.13.9.23.9.33.9.53.9.63.9.73.9.113.9.133.9.143.9.163.9.173.9.183.9.203.9.21
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CVEs, die 3.9 betreffen

CVE Titel CVSS Ausgenutzt EPSS Veröffentlicht
CVE-2022-37454 The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and resultant buffer ove... 9.8 — 2022-10-21
CVE-2019-12900 BZ2_decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors... 9.8 — 2019-06-20
CVE-2020-27619 In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retri... 9.8 — 2020-10-22
CVE-2021-3177 Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote... 9.8 — 2021-01-19
CVE-2021-29921 In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP addres... 9.8 — 2021-05-06
CVE-2022-48565 An XML External Entity (XXE) issue was discovered in Python through 3.9.1. The plistlib module no longer accep... 9.8 — 2023-08-22
CVE-2007-4559 Directory traversal vulnerability in the (1) extract and (2) extractall functions in the tarfile module in Pyt... 9.8 — 2007-08-28
CVE-2026-15308 Incremental HTMLParser feed() allows CPU-exhaustion DoS via repeated unterminated markup declarations 8.7 — 2026-07-10
CVE-2020-15523 In Python 3.6 through 3.6.10, 3.7 through 3.7.8, 3.8 through 3.8.4rc1, and 3.9 through 3.9.0b4 on Windows, a T... 7.8 — 2020-07-05
CVE-2015-20107 In Python (aka CPython) up to 3.10.8, the mailcap module does not add escape characters into commands discover... 7.8 — 2022-04-13
CVE-2022-42919 Python 3.9.x before 3.9.16 and 3.10.x before 3.10.9 on Linux allows local privilege escalation in a non-defaul... 7.8 — 2022-11-06
CVE-2022-0391 A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resou... 7.5 — 2022-02-09
CVE-2021-3737 A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a... 7.5 — 2022-03-04
CVE-2018-25032 zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many dist... 7.5 — 2022-03-25
CVE-2022-45061 An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when pr... 7.5 — 2022-11-09
CVE-2023-24329 An issue in the urllib.parse component of Python before 3.11.4 allows attackers to bypass blocklisting methods... 7.5 — 2023-02-17
CVE-2023-36632 The legacy email.utils.parseaddr function in Python through 3.11.4 allows attackers to trigger "RecursionError... 7.5 — 2023-06-25
CVE-2022-48560 A use-after-free exists in Python through 3.9 via heappushpop in heapq. 7.5 — 2023-08-22
CVE-2024-7592 Quadratic complexity parsing cookies with backslashes 7.5 — 2024-08-20
CVE-2024-6232 Regular-expression DoS when parsing TarFile headers 7.5 — 2024-09-03
CVE-2022-26488 In Python before 3.10.3 on Windows, local users can gain privileges because the search path is inadequately se... 7.0 — 2022-03-08
CVE-2026-4519 webbrowser.open() allows leading dashes in URLs 7.0 — 2026-03-21
CVE-2013-0340 expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses th... 6.8 — 2014-01-22
CVE-2016-3189 Use-after-free vulnerability in bzip2recover in bzip2 1.0.6 allows remote attackers to cause a denial of servi... 6.5 — 2016-07-01
CVE-2021-3733 There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server th... 6.5 — 2022-03-07
CVE-2021-28861 Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection again... 6.5 — 2022-08-23
CVE-2022-48564 read_ints in plistlib.py in Python through 3.9.1 is vulnerable to a potential DoS attack via CPU and RAM exhau... 6.5 — 2023-08-22
CVE-2025-13836 Excessive read buffering DoS in http.client 6.3 — 2025-12-02
CVE-2025-12084 Quadratic complexity in node ID cache clearing 6.3 — 2025-12-04
CVE-2025-12781 base64.b64decode() always accepts "+/" characters, despite setting altchars 6.3 — 2026-01-22
CVE-2026-7210 The expat and elementtree parsers use insufficient entropy for XML hash-flooding protection 6.3 — 2026-05-12
CVE-2020-10735 A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using in... 6.2 — 2022-09-09
CVE-2026-3644 Incomplete control character validation in http.cookies 6.0 — 2026-03-17
CVE-2026-4224 Stack overflow parsing XML with deeply nested DTD content models 6.0 — 2026-03-17
CVE-2026-3087 shutil.unpack_archive() doesn't check for Windows absolute paths in ZIPs 6.0 — 2026-04-28
CVE-2021-23336 Web Cache Poisoning 5.9 — 2021-02-15
CVE-2022-48566 An issue was discovered in compare_digest in Lib/hmac.py in Python through 3.9.1. Constant-time-defeating opti... 5.9 — 2023-08-22
CVE-2021-3426 There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another... 5.7 — 2021-05-20
CVE-2021-4189 A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive)... 5.3 — 2022-08-24
CVE-2023-27043 The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character... 5.3 — 2023-04-18
CVE-2023-40217 An issue was discovered in Python before 3.8.18, 3.9.x before 3.9.18, 3.10.x before 3.10.13, and 3.11.x before... 5.3 — 2023-08-25
CVE-2024-9287 Virtual environment (venv) activation scripts don't quote paths 5.3 — 2024-10-23
CVE-2026-0864 Configuration Injection via Carriage Return (\r) in write() method 4.1 — 2026-06-24
CVE-2025-13837 Out-of-memory when loading Plist 2.1 — 2025-12-02
CVE-2026-6019 BaseCookie.js_output() does not neutralize embedded characters 2.1 — 2026-04-23
CVE-2025-13462 tarfile: Skip DIRTYPE normalization during GNU LONGNAME/LONGLINK handling 2.0 — 2026-03-13

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Daten: CVE List (CVE® Program), NVD, CISA KEV, FIRST EPSS (siehe EPSS unter https://www.first.org/epss), endoflife.date. Softwareliste: awesome-selfhosted (CC BY-SA 3.0).