Unity Linux 20.1060e / 20.1070e Security Update: expat (UTSA-2026-017359)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017359 advisory. addBinding in xmlparse.c in Expat aka libexpat before 2.4.3 has an integer overflow. Tenable has extracted the preceding description block directly from the Unity...

Unity Linux 20.1060e / 20.1070e Security Update: expat (UTSA-2026-017351)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017351 advisory. In Expat aka libexpat before 2.4.3, a left shift by 29 or more places in the storeAtts function in xmlparse.c can lead to realloc misbehavior e.g., allocating too fe...

Important Photon OS Security Update - PHSA-2026-4.0-1013

Updates of 'expat' packages of Photon OS have been released...

Important Photon OS Security Update - PHSA-2026-5.0-0843

Updates of 'expat' packages of Photon OS have been released...

USN-8235-1: ITK vulnerabilities

It was discovered that Expat, vendored in ITK incorrectly handled certain files. An attacker could possibly use this issue to cause a crash or execute arbitrary code. CVE-2022-25235, CVE-2022-25236...

USN-8235-1 insighttoolkit vulnerabilities

It was discovered that Expat, vendored in ITK incorrectly handled certain files. An attacker could possibly use this issue to cause a crash or execute arbitrary code. CVE-2022-25235, CVE-2022-25236...

USN-8241-1: Coin3D vulnerabilities

It was discovered that Expat, vendored in Coin3D incorrectly handled certain files. An attacker could possibly use this issue to cause a crash or execute arbitrary code...

USN-8241-1 coin3 vulnerabilities

It was discovered that Expat, vendored in Coin3D incorrectly handled certain files. An attacker could possibly use this issue to cause a crash or execute arbitrary code...

USN-8240-1: Swish-e vulnerabilities

It was discovered that Expat, vendored in Swish-e incorrectly handled certain files. An attacker could possibly use this issue to cause a crash or execute arbitrary code. CVE-2022-25235, CVE-2022-25236...

USN-8240-1 swish-e vulnerabilities

It was discovered that Expat, vendored in Swish-e incorrectly handled certain files. An attacker could possibly use this issue to cause a crash or execute arbitrary code. CVE-2022-25235, CVE-2022-25236...

MiracleLinux 8 : python3.12-3.12.13-2.el8_10 (AXSA:2026-523:13)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-523:13 advisory. expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing CVE-2025-593...

JLSEC-2026-384

libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document...

JLSEC-2026-381

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content...

Medium: python3.13

Issue Overview: 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.audit handlers for this audit event therefore do not fire. CVE-2026-2297 The fix for...

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...

Important: python3.12

Issue Overview: 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 characters to bypass input validation. Additionally, BaseCookie.jsoutput lacked the output...

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...

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...

Important: python3.11

Issue Overview: 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 characters to bypass input validation. Additionally, BaseCookie.jsoutput lacked the output...

Important: python3.14

Issue Overview: 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, and parameters. CVE-2026-0672 The fix for CVE-2026-0672, which rejected control characters...