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CVE-2026-119717critical9.2

pybars4 through 0.9.13 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

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.

Source excerpt · VulnCheck

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

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

up9inc · VulnCheck

pybars4

1 range
VulnCheck version evidence

Package identity

pkg:pypi/pybars4Explore pybars4 →

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affected

0 → through 0.9.13

semver versions

unaffected

unknown

Other versions: unaffected

Original source 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.

Inside the record

Evidence available

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

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

Original records

CVE-2026-119717

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 · 2
VulnCheck

Assigning organization

2026-10-30
CISA-ADP

Additional data publisher

2026-10-30

What changed

Follow changes
  1. CVE · CVE-2026-119717

    Observed 2026-10-30T18:59:12.506Z · upstream updated 2026-10-30T18:36:20.432Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-30T18:25:52.310819Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

References

4 sources
github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffec2db3/pybars3.md
third-party-advisoryVulnCheck
github.com/up9inc/pybars4/blob/0.9.13/pybars/_compiler.py
technical-descriptionVulnCheck
github.com/up9inc/pybars4
productVulnCheck
www.vulncheck.com/advisories/pybars4-through-0.9.13-code-injection-via-bracketed-path-segments
third-party-advisoryVulnCheck