Recently modified vulnerabilities for "python python" 3.15.0-alpha3

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Python CPythonStack overflow parsing XML with deeply nested DTD content models

Risk 32

Severity

EPSS

0.03%

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Last updated 6 July 2026

1 / 4

Source: Ubuntu

First published (updated )

CVE-2026-4224

Python html.parser.HTMLParserIncremental HTMLParser feed() allows CPU-exhaustion DoS via repeated unterminated markup declarations

Risk 50

Severity

8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data.

First published (updated )

CVE-2026-15308

Python Software Foundation CPythonwebbrowser.open() allows leading dashes in URLs

Risk 47

Severity

EPSS

0.03%

Input Validation

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Last updated 6 July 2026

1 / 5

Source: Ubuntu

First published (updated )

CVE-2026-4519

Python configparserConfiguration Injection via Carriage Return (\r) in write() method

Risk 32

Severity

4.1

CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Configuration Injection via Carriage Return (\r) in write() method

1 / 2

Source: Microsoft

First published (updated )

CVE-2026-0864

Python Software Foundation CPythonThe expat and elementtree parsers use insufficient entropy for XML hash-flooding protection

Risk 32

Severity

6.3

EPSS

0.06%

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

xml.parsers.expat and xml.etree.ElementTree use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to trigger hash flooding.\r\n\r\nFully mitigating this vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch.

1 / 2

Source: MITRE

First published (updated )

CVE-2026-7210

Python CPythonIncomplete control character validation in http.cookies

Risk 32

Severity

EPSS

0.11%

Input Validation

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Incomplete control character validation in http.cookies

1 / 3

Source: Microsoft

First published (updated )

CVE-2026-3644

Python Python (shutil.unpack_archive)shutil.unpack_archive() doesn't check for Windows absolute paths in ZIPs

Risk 46

Severity

Path Traversal

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

If shutil.unpackarchive() is given a ZIP archive with an absolute Windows path containing a drive (C:\\...) then the archive will be extracted outside the target directory which is different than other operating systems. Only Windows is affected by this vulnerability.

1 / 2

Source: MITRE

First published (updated )

CVE-2026-3087

pypi/tarfiletarfile: Skip DIRTYPE normalization during GNU LONGNAME/LONGLINK handling

Risk 18

Severity

Input Validation, Malicious File Upload

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

tarfile: Skip DIRTYPE normalization during GNU LONGNAME/LONGLINK handling

1 / 2

Source: Microsoft

First published (updated )

CVE-2025-13462

Trending

Python CPythonStack overflow parsing XML with deeply nested DTD content models

Python html.parser.HTMLParserIncremental HTMLParser feed() allows CPU-exhaustion DoS via repeated unterminated markup declarations

Python Software Foundation CPythonwebbrowser.open() allows leading dashes in URLs

Python configparserConfiguration Injection via Carriage Return (\r) in write() method

Python Software Foundation CPythonThe expat and elementtree parsers use insufficient entropy for XML hash-flooding protection

Python CPythonIncomplete control character validation in http.cookies

Python Python (shutil.unpack_archive)shutil.unpack_archive() doesn't check for Windows absolute paths in ZIPs

pypi/tarfiletarfile: Skip DIRTYPE normalization during GNU LONGNAME/LONGLINK handling

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