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CVE-2026-32845 is an integer overflow vulnerability affecting cgltf version 1.15 and earlier. The flaw is in the cgltf_validate() function during validation of sparse accessors. By supplying a crafted glTF or GLB file containing attacker-controlled size values, an attacker can trigger unchecked arithmetic during sparse accessor validation. This can lead to out-of-bounds reads, specifically heap buffer over-reads in cgltf_calc_index_bound(). The resulting condition can crash the consuming application and may expose process memory contents.
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No public exploit code observed for this vulnerability.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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