Command Injection Affecting bison 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-BISON-20074851
- published24 Sept 2026
- disclosed29 Jul 2026
- creditUnknown
Introduced: 29 Jul 2026
CVE-2026-56389 (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 Command Injection in the HTML report generation process due to improper handling of grammar-defined configuration variables. An attacker can execute arbitrary programs with the privileges of the process by supplying a crafted grammar file that overrides the executable used for the XML-to-HTML transformation step via the tool.xsltproc variable.