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CVE-2026-32845— jkuhlmann / cgltf <= 1.15 Sparse Accessor Validation Integer Overflow

Quick assessment

Affected
jkuhlmann cgltf
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

cgltf是德国Johannes Kuhlmann个人开发者的一个用于加载和处理glTF 3D模型格式的库。 cgltf 1.15及之前版本存在安全漏洞，该漏洞源于cgltf_validate函数在验证稀疏访问器时存在整数溢出，可能导致攻击者通过特制glTF/GLB输入文件触发越界读取，造成拒绝服务崩溃和潜在内存泄露。

CVSS 8.4 · High EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
jkuhlmann cgltf ≤ 1.15.0 affected
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I. Basic Information for CVE-2026-32845

Vulnerability Information
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Vulnerability Title
jkuhlmann / cgltf <= 1.15 Sparse Accessor Validation Integer Overflow
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
cgltf 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cgltf是德国Johannes Kuhlmann个人开发者的一个用于加载和处理glTF 3D模型格式的库。 cgltf 1.15及之前版本存在安全漏洞，该漏洞源于cgltf_validate函数在验证稀疏访问器时存在整数溢出，可能导致攻击者通过特制glTF/GLB输入文件触发越界读取，造成拒绝服务崩溃和潜在内存泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jkuhlmann cgltf 0 ~ 1.15.0 -

II. Public POCs for CVE-2026-32845

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III. Intelligence Information for CVE-2026-32845

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Patches & Fixes for CVE-2026-32845 (1)

Vendor Advisories for CVE-2026-32845 (1)

News Coverage for CVE-2026-32845 (1)

IV. Related Vulnerabilities

Same product: cgltf
Same vendor: jkuhlmann
Same weakness: CWE-190

V. Comments for CVE-2026-32845

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