CVE-2026-28407
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductChainguard Malcontent
PublishedFeb 27, 2026
First seenFeb 27, 2026
Weakness typeCWE-703CWE-703
How to fix
Update
- chainguard malcontent1.21.0 or later
- github.com/chainguard-dev/malcontent1.21.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| chainguard malcontent | v < 1.21.0 | 1.21.0 |
| github.com/chainguard-dev/malcontentGo | v < 1.21.0 | 1.21.0 |
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