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CVE-2026-112107— ztxz16 fastllm Safetensors Weight Loading model.cpp CreateBuffer buffer overflow

Quick assessment

Affected
ztxz16 fastllm
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.

在 ztxz16 的 fastllm 项目（版本 1.8.2 及以下）中发现了一个漏洞。该问题影响的是 Safetensors 权重加载组件中 文件里的 函数。由于对 参数的处理不当，会导致缓冲区溢出。攻击者可远程发起利用，且相关利用代码已经公开并可能被使用。项目组已通过问题报告提前获知该漏洞，但截至目前尚未作出回应。

CVSS 6.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
ztxz16 fastllm 1.8.0 affected
1.8.1 affected
1.8.2 affected
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I. Basic Information for CVE-2026-112107

Vulnerability Information
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Vulnerability Title
ztxz16 fastllm Safetensors Weight Loading model.cpp CreateBuffer buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in ztxz16 fastllm up to 1.8.2. Affected by this issue is the function SafeTensorItem::CreateBuffer of the file src/model.cpp of the component Safetensors Weight Loading. This manipulation of the argument data_offsets causes buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ztxz16 fastllm 1.8.0 cpe:2.3:a:ztxz16:fastllm:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-112107

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-112107

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Vendor Advisories for CVE-2026-112107 (1)

Other References for CVE-2026-112107 (1)

IV. Related Vulnerabilities

Same product: fastllm
Same vendor: ztxz16
Same weakness: CWE-120

V. Comments for CVE-2026-112107

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