{"id":"UBUNTU-CVE-2026-118589","details":"A weakness has been identified in nschloe meshio up to 5.3.5. Impacted is an unknown function of the file meshio/_vtk_42.py of the component VTK Reader. Executing a manipulation of the argument DIMENSIONS can lead to uncontrolled memory allocation. The attack can be executed remotely. The project was informed of the problem early through an issue report but has not responded yet.","modified":"2026-10-29T20:03:06.509507190Z","published":"2026-10-29T00:00:00Z","upstream":["CVE-2026-118589"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-118589"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-118589"},{"type":"REPORT","url":"https://github.com/nschloe/meshio/"},{"type":"REPORT","url":"https://github.com/nschloe/meshio/issues/1576"},{"type":"REPORT","url":"https://vuldb.com/cve/CVE-2026-118589"},{"type":"REPORT","url":"https://vuldb.com/submit/1026207"},{"type":"REPORT","url":"https://vuldb.com/vuln/428027"},{"type":"REPORT","url":"https://vuldb.com/vuln/428027/cti"}],"affected":[{"package":{"name":"python-meshio","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/python-meshio?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.16-1","1.8.17-1","1.9.3-1","1.11.7-1"],"ecosystem_specific":{"binaries":[{"binary_name":"meshio-tools","binary_version":"1.11.7-1"},{"binary_name":"python3-meshio","binary_version":"1.11.7-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118589.json"}},{"package":{"name":"python-meshio","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-meshio?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.6-1","3.1.6-1ubuntu1","3.3.1-1ubuntu1","4.0.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"meshio-tools","binary_version":"4.0.4-1"},{"binary_name":"python3-meshio","binary_version":"4.0.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118589.json"}},{"package":{"name":"python-meshio","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/python-meshio?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.6-1ubuntu1","5.0.3-2","5.3.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"meshio-tools","binary_version":"5.3.0-1"},{"binary_name":"python3-meshio","binary_version":"5.3.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118589.json"}},{"package":{"name":"python-meshio","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/python-meshio?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.0.0-3","7.0.0-really-5.3.5-1"],"ecosystem_specific":{"binaries":[{"binary_name":"meshio-tools","binary_version":"7.0.0-really-5.3.5-1"},{"binary_name":"python3-meshio","binary_version":"7.0.0-really-5.3.5-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118589.json"}},{"package":{"name":"python-meshio","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/python-meshio?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.0.0-really-5.3.5-6","7.0.0-really-5.3.5-7"],"ecosystem_specific":{"binaries":[{"binary_name":"meshio-tools","binary_version":"7.0.0-really-5.3.5-7"},{"binary_name":"python3-meshio","binary_version":"7.0.0-really-5.3.5-7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118589.json"}},{"package":{"name":"python-meshio","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/python-meshio?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.0.0-really-5.3.5-6"],"ecosystem_specific":{"binaries":[{"binary_version":"7.0.0-really-5.3.5-6","binary_name":"meshio-tools"},{"binary_version":"7.0.0-really-5.3.5-6","binary_name":"python3-meshio"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118589.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}