malcontent: Nested archive extraction failure can drop content from scan inputs
Previously, 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. **Fix**: https://github.com/chainguard-dev/malcontent/pull/1383 **Acknowledgements** malcontent thanks Oleh Konko from [1seal](https://1seal.org/) for discovering and reporting this issue.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-28407US | medium5.3 | — | ||
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 w… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/chainguard-dev/malcontentPACKAGE
- https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9WEB
- https://github.com/chainguard-dev/malcontent/pull/1383WEB
- https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcpWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-28407ADVISORY
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