Arbitrary Argument Injection Affecting cpython package, versions [0,]
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-CONAN-CPYTHON-16066691
- published15 Apr 2026
- disclosed13 Apr 2026
- creditUnknown
Introduced: 13 Apr 2026
CVE-2026-4786 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Arbitrary Argument Injection via the webbrowser.open function. An attacker can execute arbitrary commands by supplying a specially crafted URL containing %action that is processed by the API.
Note:
This issue is due to incomplete fix for CVE-2026-4519