CVE-2026-119717

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    CVE-2026-119717

    Published: 30 Oct 2026Last Modified: 1 Nov 2026

    Summary: pybars4 through 0.9.13 Code Injection via Bracketed Path Segments

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119717.json, https://github.com/vladko312/advisories/blob/702e98db9642ece70d9e2150076d8014ffec2db3/pybars3.md, https://nvd.nist.gov/vuln/detail/CVE-2026-119717, https://www.vulncheck.com/advisories/pybars4-through-0.9.13-code-injection-via-bracketed-path-segments, https://github.com/up9inc/pybars4, https://github.com/up9inc/pybars4/blob/0.9.13/pybars/_compiler.py#L153-L154

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.9.13
    0.9.12
    0.9.11
    0.9.10
    0.9.9
    0.9.8
    0.9.7
    0.9.6
    0.9.5
    0.9.4
    0.9.3
    0.9.2
    0.9.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-119717 | CVE-DB