chainguard-dev/malcontent · Security
malcontent: Nested archive extraction failure can drop content from scan inputs
- GHSA ID
- GHSA-945p-3jhm-6rcp
- CVE ID
- CVE-2026-28407
- Severity
- medium
- Published
- Updated
- CVSS v4
- 6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Description
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 for discovering and reporting this issue.
CWEs
- CWE-703 · Improper Check or Handling of Exceptional Conditions
References
- 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/pull/1383 ↗
- https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9 ↗
- https://github.com/advisories/GHSA-945p-3jhm-6rcp ↗