CVE-2026-28407CWE-703

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

Medium · published February 27, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
33.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
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
EPSS
0.00405 · 33.6th percentile
Weakness
CWE-703 · Improper Check or Handling of Exceptional Conditions
Published
2026-02-27T21:28Z
EPSS history
Timeline
  • 27 FEB 21:28Z
    malcontent's nested archive extraction failure can drop content from scan inputs
    cvelistv5