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    1 vulnerability by golang.org/x/tools

    CVE-2026-42503 (GCVE-0-2026-42503)

    Vulnerability from cvelistv5 – Published: 2026-05-06 16:20 – Updated: 2026-05-07 03:55
    VLAI
    Title
    Accidental binding to INADDR_ANY might lead to RCE in golang.org/x/tools/gopls
    Summary
    gopls by default communicates via pipe. However, -port and -listen flags are supported as means of debugging. If -listen is given a value without an explicit host (e.g. :8080), or -port is used, gopls will listen on 0.0.0.0.  As a result, users might inadvertently cause gopls to bind 0.0.0.0. This can allow a malicious party on the same network to execute code arbitrarily via gopls.
    Severity
    8.8 (High)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-1327 - Binding to an unrestricted IP address
    Assigner
    Go
    References
    Impacted products
    Vendor Product Version
    golang.org/x/tools golang.org/x/tools/gopls Affected: 0.0.0 , < 0.22.0 (semver)
    		Create a notification for this product.
    Date Public
    2026-05-06 15:19
    Show details on NVD website
    To clipboard 

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              "attackVector": "ADJACENT_NETWORK",
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              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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                "timestamp": "2026-05-06T00:00:00+00:00",
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              "value": "gopls by default communicates via pipe. However, -port and -listen flags are supported as means of debugging.\u003cbr\u003eIf -listen is given a value without an explicit host (e.g. :8080), or -port is used, gopls will listen on 0.0.0.0.\u0026nbsp;\u003cbr\u003eAs a result, users might\u0026nbsp;inadvertently cause gopls to bind 0.0.0.0.\u003cbr\u003eThis can allow a\u0026nbsp;malicious party on the same network to execute code arbitrarily via gopls."
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        }
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          "descriptions": [
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              "description": "CWE-1327 Binding to an unrestricted IP address",
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      "references": [
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          "url": "https://go.dev/issue/79211"
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      "title": "Accidental binding to INADDR_ANY might lead to RCE in golang.org/x/tools/gopls",
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    "dateReserved": "2026-04-28T00:21:12.792Z",
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