CVE-2026-119716 pybars3 - Code Injection

pybars3 <= 0.9.7 contains a code injection vulnerability caused by unescaped bracketed path segments in pybars/_compiler.py, letting template authors execute arbitrary Python code, exploit requires crafted Handlebars templates.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Code Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-94

Vendor fix

Update to the latest version beyond 0.9.7.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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