CVE-2026-28407malcontent is software for discovering supply-chain compromises through context, differential analysis, and YARA.
Updated under an hour ago ()
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It affects chainguard malcontent. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-703
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
chainguard malcontent chainguard:malcontent | before 1.21.0 | NVD |
References
- https://github.com/chainguard-dev/malcontent/commit/356c56659ccfcad0b249a97de8cf71f151ed3ee9patch
- https://github.com/chainguard-dev/malcontent/pull/1383issue-tracking, patch
- https://github.com/chainguard-dev/malcontent/security/advisories/GHSA-945p-3jhm-6rcppatch, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.