{"id":"CVE-2026-82591","aliases":["DEBIAN-CVE-2026-82591","EUVD-2026-68294","GHSA-4pff-rvgp-gggv","OESA-2026-4021","OESA-2026-4022","OESA-2026-4023","OESA-2026-4024","UBUNTU-CVE-2026-82591"],"status":"published","title":"Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflow","description":"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.","severity":{"version":"4.0","score":4.8,"vector":"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/E:X","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00172,"percentile":0.06574,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119","CWE-122"],"published":"2026-08-30T22:45:13Z","modified":"2026-10-28T11:09:38Z","fixes":[{"ecosystem":"openEuler:24.03-LTS-SP3","package":"assimp","fixed_in":["5.3.1-22.oe2403sp3"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP4","package":"assimp","fixed_in":["5.3.1-22.oe2403sp4"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP4","package":"assimp","fixed_in":["3.3.1-39.oe2003sp4"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP1","package":"assimp","fixed_in":["5.3.1-22.oe2403sp1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.2.5~ds0-1","5.2.5~ds0-1.1","5.3.1+ds-1","5.3.1+ds-2","5.4.0+ds-1","5.4.1+ds-1","5.4.2+ds-1","5.4.3+ds-2","5.4.3+ds-3","6.0.2+ds-1","6.0.3+ds-1","6.0.4+ds-1","6.0.4+ds-3","6.0.5+ds-1"]},{"source":"osv","ecosystem":"Debian:13","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.3+ds-2","5.4.3+ds-3","6.0.2+ds-1","6.0.3+ds-1","6.0.4+ds-1","6.0.4+ds-3","6.0.5+ds-1"]},{"source":"osv","ecosystem":"Debian:14","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.3+ds-2","5.4.3+ds-3","6.0.2+ds-1","6.0.3+ds-1","6.0.4+ds-1","6.0.4+ds-3","6.0.5+ds-1"]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP3","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.1-22.oe2403sp3"}]}]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP4","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.1-22.oe2403sp4"}]}]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP4","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.1-39.oe2003sp4"}]}]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP1","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.1-22.oe2403sp1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"assimp","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"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"assimp","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"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0~dfsg-5","4.1.0~dfsg-5ubuntu1","5.0.1~ds0-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"assimp","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"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"assimp","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"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"assimp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.4+ds-1build1","6.0.5+ds-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"assimp","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"]}],"products":[{"vendor":"open asset import library","product":"assimp"}],"references":[{"url":"https://vuldb.com/vuln/397086","tags":["vdb-entry","technical-description","advisory","report"]},{"url":"https://vuldb.com/vuln/397086/cti","tags":["signature","permissions-required","report"]},{"url":"https://vuldb.com/cve/CVE-2026-82591","tags":["third-party-advisory","advisory","report"]},{"url":"https://vuldb.com/submit/892413","tags":["third-party-advisory","advisory","report"]},{"url":"https://github.com/assimp/assimp/pull/6718","tags":["issue-tracking","patch","fix","report"]},{"url":"https://github.com/assimp/assimp/commit/bf9dabb617c46e5133dac65cca6bff177917afcb","tags":["patch","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82591","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4pff-rvgp-gggv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82591.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-82591","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4021","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4022","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4023","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4024","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-82591","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-82591","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-82591","title":"Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflow","description":"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.","status":"published","published":"2026-08-30T22:45:13.715Z","modified":"2026-08-31T18:56:49.387Z","cvss":[{"version":"4.0","score":4.8,"vector":"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/E:X","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","level":"medium","assessor":"cna"},{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","level":"medium","assessor":"cna"},{"version":"2.0","score":4.3,"vector":"AV:L/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C","assessor":"cna"}],"cwes":["CWE-122","CWE-119"],"updated_at":"2026-11-02T13:40:46.161838Z"}],"euvd":[{"id":"EUVD-2026-68294","description":"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.","status":"published","published":"2026-08-30T22:45:13Z","modified":"2026-08-31T18:56:49Z","cvss":[{"version":"4.0","score":4.8,"vector":"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/E:X","level":"medium"}],"updated_at":"2026-11-02T18:01:19.818565Z"}],"ghsa":[{"id":"GHSA-4pff-rvgp-gggv","title":"A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The...","description":"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.","status":"published","published":"2026-08-31T00:30:20Z","modified":"2026-08-31T00:30:21Z","cvss":[{"version":"4.0","score":4.8,"vector":"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/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","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:11:10.774419Z"}],"nvd":[{"id":"CVE-2026-82591","description":"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.","status":"published","published":"2026-08-30T23:17:08.137Z","modified":"2026-09-01T20:48:22.513Z","cvss":[{"version":"4.0","score":4.8,"vector":"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/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":4.3,"vector":"AV:L/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-119","CWE-122"],"updated_at":"2026-11-02T14:12:42.691315Z"}],"osv":[{"id":"CVE-2026-82591","title":"Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflow","description":"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.","status":"published","published":"2026-08-30T22:45:13.715Z","modified":"2026-10-28T11:09:38.884789252Z","cvss":[{"version":"4.0","score":4.8,"vector":"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/E:X","level":"medium"}],"cwes":["CWE-119","CWE-122"],"updated_at":"2026-11-02T15:45:18.131258Z"},{"id":"DEBIAN-CVE-2026-82591","description":"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.","status":"published","published":"2026-08-30T23:17:08.137Z","modified":"2026-10-01T03:03:37.222912824Z","cvss":[{"version":"4.0","score":4.8,"vector":"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/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","level":"medium"}],"updated_at":"2026-11-02T15:46:04.577397Z"},{"id":"OESA-2026-4021","title":"assimp security update","description":"Assimp is a library to load and process geometric scenes from various data formats. Assimp aims to provide a full asset conversion pipeline for use in game engines and real-time rendering systems of any kind, but is not limited to this purpose.\r\n\r\nSecurity Fix(es):\n\nA 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.(CVE-2026-82591)","status":"published","published":"2026-09-25T01:27:23Z","modified":"2026-09-25T01:45:04.644320876Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4022","title":"assimp security update","description":"Assimp is a library to load and process geometric scenes from various data formats. Assimp aims to provide a full asset conversion pipeline for use in game engines and real-time rendering systems of any kind, but is not limited to this purpose.\r\n\r\nSecurity Fix(es):\n\nA 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.(CVE-2026-82591)","status":"published","published":"2026-09-25T01:27:24Z","modified":"2026-09-25T01:45:03.62719953Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4023","title":"assimp security update","description":"Assimp is a library to load and process geometric scenes from various data formats. Assimp aims to provide a full asset conversion pipeline for use in game engines and real-time rendering systems of any kind, but is not limited to this purpose.\r\n\r\nSecurity Fix(es):\n\nA 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.(CVE-2026-82591)","status":"published","published":"2026-09-25T01:27:24Z","modified":"2026-09-25T01:45:04.6512736Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4024","title":"assimp security update","description":"Assimp is a library to load and process geometric scenes from various data formats. Assimp aims to provide a full asset conversion pipeline for use in game engines and real-time rendering systems of any kind, but is not limited to this purpose.\r\n\r\nSecurity Fix(es):\n\nA 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.(CVE-2026-82591)","status":"published","published":"2026-09-25T01:27:25Z","modified":"2026-09-25T01:45:04.649357346Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"UBUNTU-CVE-2026-82591","description":"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.","status":"published","published":"2026-08-30T23:17:00Z","modified":"2026-10-17T13:01:12.175084999Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"},{"version":"4.0","score":4.8,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T16:57:22.213888Z"}]}}