CVE-2026-119716: pybars3 through 0.9.7 Code Injection via Bracketed Path Segments
Published Oct 30, 2026
·Updated
pybars3 through 0.9.7 and pybars4 through 0.9.13 contain a code injection vulnerability in pybars/compiler.py that allows template authors to execute Python code via unescaped bracketed path segments. Attackers can supply Handlebars templates with crafted segments in helper or block arguments to break out of string literals and execute Python in the application process.
Other sources
pybars3 through 0.9.7 contains a code injection vulnerability in pybars/compiler.py that allows template authors to execute Python code via unescaped bracketed path segments. Attackers can supply Handlebars templates with crafted segments in helper or block arguments to break out of string literals and execute Python in the application process.
— MITRE
Event History
Oct 30, 2026
CVE Published
via MITRE·03:16 PM
Data Sourced
via MITRE·03:16 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·04:17 PM
DescriptionSeverityWeakness
Event
via NVD·04:17 PM