{"id":"UBUNTU-CVE-2026-82591","details":"A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.","modified":"2026-09-02T16:28:28Z","published":"2026-08-30T23:17:00Z","upstream":["CVE-2026-82591"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-82591"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-82591"},{"type":"REPORT","url":"https://github.com/assimp/assimp/pull/6718"},{"type":"REPORT","url":"https://github.com/assimp/assimp/commit/bf9dabb617c46e5133dac65cca6bff177917afcb"},{"type":"REPORT","url":"https://vuldb.com/cve/CVE-2026-82591"},{"type":"REPORT","url":"https://vuldb.com/submit/892413"},{"type":"REPORT","url":"https://vuldb.com/vuln/397086"},{"type":"REPORT","url":"https://vuldb.com/vuln/397086/cti"}],"affected":[{"package":{"name":"assimp","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/assimp?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0~dfsg-4ubuntu4","3.1.1~dfsg-5","3.2~dfsg-1","3.2~dfsg-2","3.2~dfsg-3"],"ecosystem_specific":{"binaries":[{"binary_name":"assimp-utils","binary_version":"3.2~dfsg-3"},{"binary_name":"libassimp3v5","binary_version":"3.2~dfsg-3"},{"binary_name":"python-pyassimp","binary_version":"3.2~dfsg-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82591.json"}},{"package":{"name":"assimp","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/assimp?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.1~dfsg-5","3.3.1~dfsg-5ubuntu1","3.3.1~dfsg-5+build1","4.0.1~dfsg-1~exp2","4.0.1~dfsg-1","4.1.0~dfsg-1","4.1.0~dfsg-2","4.1.0~dfsg-3"],"ecosystem_specific":{"binaries":[{"binary_name":"assimp-utils","binary_version":"4.1.0~dfsg-3"},{"binary_version":"4.1.0~dfsg-3","binary_name":"libassimp4"},{"binary_version":"4.1.0~dfsg-3","binary_name":"python-pyassimp"},{"binary_version":"4.1.0~dfsg-3","binary_name":"python3-pyassimp"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82591.json"}},{"package":{"name":"assimp","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/assimp?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0~dfsg-5","4.1.0~dfsg-5ubuntu1","5.0.1~ds0-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.0.1~ds0-1build1","binary_name":"assimp-testmodels"},{"binary_name":"assimp-utils","binary_version":"5.0.1~ds0-1build1"},{"binary_version":"5.0.1~ds0-1build1","binary_name":"libassimp5"},{"binary_name":"python3-pyassimp","binary_version":"5.0.1~ds0-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82591.json"}},{"package":{"name":"assimp","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/assimp?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.1~ds0-2","5.0.1~ds0-3ubuntu1","5.1.4~ds0-1","5.1.5~ds0-1","5.1.6~ds0-1","5.2.0~ds0-2","5.2.1~ds0-1","5.2.2~ds0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"assimp-testmodels","binary_version":"5.2.2~ds0-1"},{"binary_version":"5.2.2~ds0-1","binary_name":"assimp-utils"},{"binary_name":"libassimp5","binary_version":"5.2.2~ds0-1"},{"binary_name":"python3-pyassimp","binary_version":"5.2.2~ds0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82591.json"}},{"package":{"name":"assimp","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/assimp?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.2.5~ds0-1.1build1","5.3.1+ds-1","5.3.1+ds-2","5.3.1+ds-2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.3.1+ds-2build1","binary_name":"assimp-testmodels"},{"binary_name":"assimp-utils","binary_version":"5.3.1+ds-2build1"},{"binary_name":"libassimp5","binary_version":"5.3.1+ds-2build1"},{"binary_name":"python3-pyassimp","binary_version":"5.3.1+ds-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82591.json"}},{"package":{"name":"assimp","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/assimp?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.3+ds-2","6.0.2+ds-1","6.0.3+ds-1","6.0.4+ds-1","6.0.4+ds-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"assimp-testmodels","binary_version":"6.0.4+ds-1build1"},{"binary_version":"6.0.4+ds-1build1","binary_name":"assimp-utils"},{"binary_version":"6.0.4+ds-1build1","binary_name":"libassimp6"},{"binary_name":"python3-pyassimp","binary_version":"6.0.4+ds-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82591.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}