GHSA-fpv6-f8jw-rc3r

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    GHSA-fpv6-f8jw-rc3r

    Published: 23 Sept 2021Last Modified: 8 Jul 2026

    Summary: Elvish vulnerable to remote code execution via the web UI backend

    Details: ### Impact Elvish's backend for the experimental web UI (started by `elvish -web`) hosts an endpoint that allows executing the code sent from the web UI. The backend does not check the origin of requests correctly. As a result, if the user has the web UI backend open and visits a compromised or malicious website, the website can send arbitrary code to the endpoint in localhost. ### Patches All Elvish releases since 0.14.0 no longer include the experimental web UI, although it is still possible for the user to build a version from source that includes it. The issue can be patched for previous versions by removing the web UI (found in web, pkg/web or pkg/prog/web, depending on the exact version). ### Workarounds Do not use the experimental web UI. ### For more information If you have any questions or comments about this advisory, please email [email protected].

    References: https://github.com/elves/elvish/security/advisories/GHSA-fpv6-f8jw-rc3r, https://nvd.nist.gov/vuln/detail/CVE-2021-41088, https://github.com/elves/elvish/commit/ccc2750037bbbfafe9c1b7a78eadd3bd16e81fe5, https://github.com/elves/elvish

    Affected packages

    Package

    Name: github.com/elves/elvish

    Purl: pkg:golang/github.com/elves/elvish

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.14.0

    Affected versions

    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
    GHSA-fpv6-f8jw-rc3r | CVE-DB