CVE-2026-28407 PUBLISHED

malcontent's nested archive extraction failure can drop content from scan inputs

Assigner: GitHub_M
Reserved: 27.02.2026 Published: 27.02.2026 Updated: 27.02.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 6.9

Product Status

Vendor chainguard-dev
Product malcontent
Versions
  • Version < 1.21.0 is affected

References

Problem Types

  • CWE-703: Improper Check or Handling of Exceptional Conditions CWE