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    CVE-2026-44594

    esm.sh is a no-build content delivery network (CDN) for web development. In 137 and earlier, a Local File Inclusion (LFI) vulnerability exists in the esbuild plugin's handling of the browser field in package.json. An attacker can publish an npm package that causes the server to read and return arbitrary files from the host filesystem during the build process.

    Published:May 28, 2026
    Last Modified:May 30, 2026
    EPS:May 28, 2026
    EPSS Score:0.00043
    CVSS Score:7.5

    Affected Products

    Vendor
    Esm-dev
    Product
    Esmsh

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-44593 (CVSS 8.7) — esm.sh is a no-build content delivery network (CDN) for web development. In 137 and earlier, the legacy router…
    CVE-2026-27730 (CVSS 7.5) — esm.sh is a no-build content delivery network (CDN) for web development. Versions up to and including 137 have…
    CVE-2025-50180 (CVSS 8.7) — esm.sh is a no-build content delivery network (CDN) for web development. In version 136, esm.sh is vulnerable …
    CVE-2026-23644 (CVSS 7.7) — esm.sh is a no-build content delivery network (CDN) for web development. Prior to Go pseeudoversion 0.0.0-2026…
    CVE-2025-65026 (CVSS 6.1) — esm.sh is a nobuild content delivery network(CDN) for modern web development. Prior to version 136, The esm.sh…
    CVE-2025-65025 (CVSS 8.2) — esm.sh is a nobuild content delivery network(CDN) for modern web development. Prior to version 136, the esm.sh…
    CVE-2025-59342 (CVSS 5.5) — esm.sh is a nobuild content delivery network(CDN) for modern web development. In 136 and earlier, a path-trave…
    CVE-2025-59341 (CVSS 7.7) — esm.sh is a nobuild content delivery network(CDN) for modern web development. In 136 and earlier, a Local File…

    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