BIT-PYTHON-MIN-2026-7210 The expat and elementtree parsers use insufficient entropy for XML hash-flooding protection

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...

BIT-PYTHON-2026-4224 Stack overflow parsing XML with deeply nested DTD content models

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

BIT-PYTHON-MIN-2026-4224 Stack overflow parsing XML with deeply nested DTD content models

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

[SECURITY] [DLA 4583-1] python3.9 security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4583-1 [email protected] https://www.debian.org/lts/security/ Arnaud Rebillout May 15, 2026 https://wiki.debian.org/LTS -...

CVE-2026-7210 The expat and elementtree parsers use insufficient entropy for XML hash-flooding protection

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...

CVE-2026-7210 The expat and elementtree parsers use insufficient entropy for XML hash-flooding protection

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...

Amazon Linux 2023 : python3.11, python3.11-devel, python3.11-idle (ALAS2023-2026-1620)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1620 advisory. The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update, |= operator, and unpickling paths were not patched, allowing control...

Amazon Linux 2023 : python3.14, python3.14-devel, python3.14-freethreading (ALAS2023-2026-1617)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1617 advisory. When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, a...

Amazon Linux 2023 : python3.13, python3.13-devel, python3.13-freethreading (ALAS2023-2026-1600)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1600 advisory. The import hook in CPython that handles legacy .pyc files SourcelessFileLoader is incorrectly handled in FileLoader a base class and so does not use io.opencode to read the .pyc files. sys.aud...

OESA-2026-1900 python3 security update

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C...

Amazon Linux 2 : python, --advisory ALAS2-2026-3218 (ALAS-2026-3218)

The version of python installed on the remote host is prior to 2.7.18-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3218 advisory. The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update, |=...

EUVD-2006-7232

XML::Parser versions through 2.47 for Perl could overflow the pre-allocated buffer size cause a heap corruption double free or corruption and crashes. A :utf8 PerlIO layer, parsestream in Expat.xs could overflow the XML input buffer because Perl's read returns decoded characters while SvPV gives...

SUSE CVE-2026-4224

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

EUVD-2026-12486

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

CVE-2026-4224

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

ALPINE-CVE-2026-4224

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

UBUNTU-CVE-2026-4224

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

CVE-2026-4224 Stack overflow parsing XML with deeply nested DTD content models

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

CVE-2026-4224

CVE-2026-4224 is a CPython vulnerability: when an Expat parser with a registered ElementDeclHandler parses an inline DTD containing a deeply nested content model, a C stack overflow can occur. The connected advisories confirm this affects multiple Python3 series (3.9, 3.11, 3.12, 3.13, 3.14) and ...

CVE-2026-4224

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...