{"id":"CVE-2026-32845","summary":"jkuhlmann / cgltf \u003c= 1.15 Sparse Accessor Validation Integer Overflow","details":"cgltf version 1.15 and prior contain an integer overflow vulnerability in the cgltf_validate() function when validating sparse accessors that allows attackers to trigger out-of-bounds reads by supplying crafted glTF/GLB input files with attacker-controlled size values. Attackers can exploit unchecked arithmetic operations in sparse accessor validation to cause heap buffer over-reads in cgltf_calc_index_bound(), resulting in denial of service crashes and potential memory disclosure.","modified":"2026-10-21T02:56:46.421276271Z","published":"2026-03-23T15:50:44.296Z","database_specific":{"cwe_ids":["CWE-190"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32845.json","unresolved_ranges":[{"extracted_events":[{"range":[{"last_affected":"1.15.0"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}],"cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32845.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32845"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/jkuhlmann-cgltf-sparse-accessor-validation-integer-overflow"},{"type":"REPORT","url":"https://github.com/jkuhlmann/cgltf/pull/293"},{"type":"PACKAGE","url":"https://github.com/jkuhlmann/cgltf"},{"type":"EVIDENCE","url":"https://github.com/jkuhlmann/cgltf/issues/287"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jkuhlmann/cgltf","events":[{"introduced":"0"},{"last_affected":"360db1a95480fe102ae9c69b27c5d101167ff5ba"}],"database_specific":{"extracted_events":[{"source":"DESCRIPTION","range":[{"introduced":"0"},{"last_affected":"1.15"}]}]}}],"versions":["v1.15","v1.14","v1.13","v1.12","v1.11","v1.10","v1.9","v1.8","v1.7","v1.6","v1.5","v1.4","v1.3","v1.2","v1.1","v1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32845.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}