Known Vulnerabilities for Cpython by Python

Listed below are 1 of the newest known vulnerabilities associated with "Cpython" by "Python".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-34444 json Lupa integrates the runtimes of Lua or LuaJIT2 into CPython. In 2.6 and earlier, attribute_filter is not consistently applied... Not Provided 2026-04-06 2026-07-15
CVE-2026-9769 json justhtml through 1.9.1 (fixed in 1.10.0) is vulnerable to uncontrolled recursion leading to denial of service. During JustHTM... Not Provided 2026-08-23 2026-08-23
CVE-2026-2297 json The import hook in CPython that handles legacy *.pyc files (SourcelessFileLoader) is incorrectly handled in FileLoader (a bas... Not Provided 2026-03-04 2026-08-13
CVE-2025-8194 json There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The ... Not Provided 2025-07-28 2026-07-31
CVE-2025-4516 json There is an issue in CPython when using `bytes.decode("unicode_escape", error="ignore|replace")`. If you are not using the "u... Not Provided 2025-05-15 2026-07-31
CVE-2024-5642 json CPython 3.9 and earlier doesn't disallow configuring an empty list ("[]") for SSLContext.set_npn_protocols() which is an inva... Not Provided 2024-06-27 2026-07-31
CVE-2023-33595 json CPython v3.12.0 alpha 7 was discovered to contain a heap use-after-free via the function ascii_decode at /Objects/unicodeobje... 5.5 - MEDIUM 2023-06-07 2023-06-15
CVE-2023-6507 json An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does n... 5.5 - MEDIUM 2023-12-08 2026-07-31

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