Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/up9inc/pybars4
- https://github.com/up9inc/pybars4/blob/0.9.13/pybars/_compiler.py#L153-L154
- https://github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffe
- https://www.vulncheck.com/advisories/pybars4-through-0.9.13-code-injection-via-b
FAQ
What is CVE-2026-119717?
CVE-2026-119717 is a vulnerability with a CVSS score of 8.1 (HIGH). 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. Attack...
How severe is CVE-2026-119717?
CVE-2026-119717 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119717?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.