Command Injection Affecting z-libs/Zen-C package, versions [,0.4.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ZLIBSZENC-15364904
- published28 Feb 2026
- disclosed27 Feb 2026
- creditF0ndueSav0yarde
Introduced: 27 Feb 2026
CVE-2026-28207 (opens in a new tab)How to fix?
Upgrade z-libs/Zen-C to version 0.4.2 or higher.
Overview
Affected versions of this package are vulnerable to Command Injection via the main process when a specially crafted output filename is provided through the -o command-line argument. An attacker can execute arbitrary shell commands by injecting shell metacharacters into the output filename, which are interpreted by the shell when the command string is executed using system().