CVE-2026-42500— Panic when reading out of bound palette index in golang.org/x/image/bmp
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| golang.org/x/image | golang.org/x/image/bmp | < 0.41.0 | affected |
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I. Basic Information for CVE-2026-42500
Vulnerability Information
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Vulnerability Title
Panic when reading out of bound palette index in golang.org/x/image/bmp
Source: NVD (National Vulnerability Database)
Vulnerability Description
Decoding a paletted BMP file with an out-of-range palette index results in a panic when accessing pixels in the invalid image.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Google Go 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Go是美国谷歌（Google）公司的一种静态强类型、编译型、并发型，并具有垃圾回收功能的编程语言。 Google Go存在安全漏洞，该漏洞源于解码调色板BMP文件时，如果使用超出范围的调色板索引访问无效图像中的像素，会导致程序崩溃。
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 |
|---|---|---|---|---|
| golang.org/x/image | golang.org/x/image/bmp | 0 ~ 0.41.0 | - |
II. Public POCs for CVE-2026-42500
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Patches & Fixes for CVE-2026-42500 (1)
Mailing List Discussions for CVE-2026-42500 (1)
Other References for CVE-2026-42500 (2)
IV. Related Vulnerabilities
Same vendor: golang.org/x/image
- CVE-2026-46599
Excessive resource consumption in PackBits decompression in - CVE-2026-33812
Excessive memory allocation when decoding malicious SFNT in - CVE-2026-33813
Panic when decoding large WEBP image on 32-bit platforms in - CVE-2026-33809
OOM from malicious IFD offset in golang.org/x/image/tiff - CVE-2024-24792
Panic when parsing invalid palette-color images in golang.or
V. Comments for CVE-2026-42500
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