Windows apps · Application version · May 10, 2026

Python 3.14 3.14.5

Python 3.14 3.14.5, released May 10, 2026, fixes 7 CVEs in Python 3.14. None of them is reported as exploited. Patch Radar priority: High. The latest Python 3.14 is 3.14.10, which also fixes every one of these CVEs.

High

Superseded. The latest Python 3.14 is 3.14.10, which also fixes every CVE on this page. Install that instead.

CVEs closed
7
None rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0058
47th percentile

Priority of the 7 CVEs

Patch now 0 Urgent 0 High 6 Routine 1

Applies to

ProductVersion
Python 3.143.14.5

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2026-6100 Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure9.1 0.0058 None reported
High CVE-2026-1502 HTTP client proxy tunnel headers not validated for CR/LF8.1 0.0056 None reported
High CVE-2026-3298 Out-of-bounds write in Windows asyncio.ProacterEventLoop.sock_recvfrom_into() when using nbytes8.8 0.0039 None reported
High CVE-2026-4786 Incomplete mitigation of CVE-2026-4519, %action expansion for command injection to webbrowser.open()8.1 0.0029 None reported
High CVE-2026-6019 BaseCookie.js_output() does not neutralize embedded characters7.1 0.0021 None reported
High CVE-2026-5713 Out-of-bounds read/write during remote profiling and asyncio process introspection when connecting to malicious target8.1 0.0013 None reported
Routine CVE-2026-3087 shutil.unpack_archive() doesn't check for Windows absolute paths in ZIPs6.0 0.0055 None reported
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