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    2 vulnerabilities by cgauge

    CVE-2026-76833 (GCVE-0-2026-76833)

    Vulnerability from nvd – Published: 2026-08-20 13:33 – Updated: 2026-08-20 14:29
    VLAI
    Title
    @cgauge/yaml npm Package Arbitrary Code Execution via eval() YAML Tag
    Summary
    @cgauge/yaml npm package contains an arbitrary code execution vulnerability that allows attackers to execute arbitrary JavaScript by embedding a custom !js YAML tag whose construct callback unconditionally calls eval() on attacker-supplied string values during document parsing. Any application parsing untrusted YAML input with this library exposes full Node.js runtime authority, including environment variable access, filesystem read/write, network access, and subprocess execution, with no safe-mode alternative or opt-out mechanism available.
    Severity
    8.4 (High)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-20 14:28 UTC
    CWE
    • CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
    Assigner
    References
    Impacted products
    Vendor Product Version
    cgauge @cgauge/yaml Affected: 0 , ≤ 0.27.0 (custom)
    		Create a notification for this product.
    Date Public
    2026-08-19 00:00
    Credits
    Arjun Jain
    Show details on NVD website
    To clipboard 

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    CVE-2026-76833 (GCVE-0-2026-76833)

    Vulnerability from cvelistv5 – Published: 2026-08-20 13:33 – Updated: 2026-08-20 14:29
    VLAI
    Title
    @cgauge/yaml npm Package Arbitrary Code Execution via eval() YAML Tag
    Summary
    @cgauge/yaml npm package contains an arbitrary code execution vulnerability that allows attackers to execute arbitrary JavaScript by embedding a custom !js YAML tag whose construct callback unconditionally calls eval() on attacker-supplied string values during document parsing. Any application parsing untrusted YAML input with this library exposes full Node.js runtime authority, including environment variable access, filesystem read/write, network access, and subprocess execution, with no safe-mode alternative or opt-out mechanism available.
    Severity
    8.4 (High)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-20 14:28 UTC
    CWE
    • CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
    Assigner
    References
    Impacted products
    Vendor Product Version
    cgauge @cgauge/yaml Affected: 0 , ≤ 0.27.0 (custom)
    		Create a notification for this product.
    Date Public
    2026-08-19 00:00
    Credits
    Arjun Jain
    Show details on NVD website
    To clipboard 

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