Is CVE-2026-119717 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-119717?

CVE-2026-119717 has a CVSS v3 severity of HIGH (8.1).

Back

CVE-2026-119717

Description

pybars4 through 0.9.13 contains a code injection vulnerability in pybars/_compiler.py that allows attackers to execute Python code via unescaped bracketed path segments in Handlebars templates. Attackers can supply a template with a crafted segment in a helper or block argument to break out of the generated resolve() string literal and execute code in the application process.