CVE-2026-5185— Nothings stb_image Multi-frame GIF File stb_image.h stbi__gif_load_next heap-based overflow
Quick assessment
Affected
Nothings stb_image
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.
stb是Sean Barrett个人开发者的一个用于C/C++的stb单文件公共域库。 stb 2.30及之前版本存在安全漏洞，该漏洞源于对文件stb_image.h中函数stbi__gif_load_next的错误操作，可能导致堆缓冲区溢出。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-5185
Vulnerability Information
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Vulnerability Title
Nothings stb_image Multi-frame GIF File stb_image.h stbi__gif_load_next heap-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Nothings stb_image up to 2.30. This affects the function stbi__gif_load_next of the file stb_image.h of the component Multi-frame GIF File Handler. The manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
stb 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
stb是Sean Barrett个人开发者的一个用于C/C++的stb单文件公共域库。 stb 2.30及之前版本存在安全漏洞，该漏洞源于对文件stb_image.h中函数stbi__gif_load_next的错误操作，可能导致堆缓冲区溢出。
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
II. Public POCs for CVE-2026-5185
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