malcontent: Nested archive extraction failure can drop content from scan inputs in github.com/chainguard-dev/malcontent
malcontent: Nested archive extraction failure can drop content from scan inputs in github.com/chainguard-dev/malcontent
02 / AFFECTED SOFTWARE
Affected packages
96 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
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.
malcontent: Nested archive extraction failure can drop content from scan inputs in github.com/chainguard-dev/malcontent
05 / REFERENCES
Further evidence
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28407.json
- https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9
- https://github.com/chainguard-dev/malcontent/pull/1383
- https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcp
- https://nvd.nist.gov/vuln/detail/CVE-2026-28407
- https://github.com/chainguard-dev/malcontent