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CVE-2026-119716critical9.2

pybars3 through 0.9.7 Code Injection via Bracketed Path Segments

Unsupported when assigned

VulnCheck marked the affected products as already unsupported when this CVE was assigned. A patch may not be available. Review the vendor references for migration or mitigation guidance.

This tag describes support at assignment time, not current support for every related product.

Impact

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.

Source excerpt · VulnCheck

Affected packages

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Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

wbond · VulnCheck

pybars3

1 range
VulnCheck version evidence

Package identity

pkg:pypi/pybars3Explore pybars3 →

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affected

0 → through 0.9.7

semver versions

unaffected

unknown

Other versions: unaffected

Original source description

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.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119716

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-94 ↗

Improper Control of Generation of Code ('Code Injection')

VulnCheck

Related →
Contributing organizations · 1
VulnCheck

Assigning organization

2026-10-30

What changed

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References

5 sources
github.com/wbond/pybars3/issues/88
issue-trackingVulnCheck
github.com/wbond/pybars3
productVulnCheck
github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffec2db3/pybars3.md
third-party-advisoryVulnCheck
github.com/wbond/pybars3/blob/0.9.7/pybars/_compiler.py
technical-descriptionVulnCheck
www.vulncheck.com/advisories/pybars3-through-0.9.7-code-injection-via-bracketed-path-segments
third-party-advisoryVulnCheck