CVE-2026-28407— malcontent's nested archive extraction failure can drop content from scan inputs
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I. Basic Information for CVE-2026-28407
Vulnerability Information
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Vulnerability Title
malcontent's nested archive extraction failure can drop content from scan inputs
Source: NVD (National Vulnerability Database)
Vulnerability Description
malcontent is software for discovering supply-chain compromises through context, differential analysis, and YARA. Prior to version 1.21.0, malcontent would remove nested archives which failed to extract which could potentially leave malicious content. A better approach is to preserve these archives so that malcontent can attempt a best-effort scan of the archive bytes. Version 1.21.0 fixes the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对异常条件检查或处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
malcontent 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
malcontent是Chainguard开源的一个供应链攻击检测工具。 malcontent 1.21.0之前版本存在安全漏洞，该漏洞源于会删除提取失败的嵌套归档，可能遗留恶意内容。
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 |
|---|---|---|---|---|
| chainguard-dev | malcontent | < 1.21.0 | - |
II. Public POCs for CVE-2026-28407
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2026-28407
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