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CVE-2026-112019— cgltf through 1.15 Heap Out-of-Bounds Read via cgltf_accessor_unpack_floats()

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 1.15 及更早版本在 函数中存在堆越界读取漏洞。该函数在稀疏（sparse）数据解包过程中，会按照基础缓冲视图（base bufferView）的 值推进稀疏值游标。攻击者可构造恶意的 glTF 或 GLB 文件，使其通过 验证，从而诱导程序将相邻的堆内存读取到顶点数据中，或导致应用程序崩溃。

CVSS 6.1 · Medium

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-112019

Vulnerability Information
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Vulnerability Title
cgltf through 1.15 Heap Out-of-Bounds Read via cgltf_accessor_unpack_floats()
Source: CVE Program / CVE List V5
Vulnerability Description
cgltf through 1.15 contains a heap out-of-bounds read vulnerability in cgltf_accessor_unpack_floats() that advances the sparse values cursor by the base bufferView byteStride. Attackers can supply a crafted glTF or GLB file that passes cgltf_validate() to read adjacent heap memory into vertex data or crash applications.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jkuhlmann cgltf 0 ~ 1.15 -

II. Public POCs for CVE-2026-112019

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III. Intelligence Information for CVE-2026-112019

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Vendor Advisories for CVE-2026-112019 (1)

Other References for CVE-2026-112019 (2)

IV. Related Vulnerabilities

Same product: cgltf
Same vendor: jkuhlmann
Same weakness: CWE-125

V. Comments for CVE-2026-112019

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