Findings

CVE-2026-28407

malcontent is software for discovering supply-chain compromises through context, differential analysis, and YARA.

Published Feb 27, 2026 · updated Jun 17, 2026 · chainguard malcontent

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.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 27, 2026 · NIST NVD

    Detected

    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 iss

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 iss

Affected

  • cpe chainguard/malcontentversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-28407

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-28407

    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 pres

    nvd.nist.gov

References

CVE-2026-28407 · ZeroDay Findings