{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-21618",
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "state": "PUBLISHED",
        "assignerShortName": "EEF",
        "dateReserved": "2026-01-01T03:46:45.933Z",
        "datePublished": "2026-01-19T14:22:46.770Z",
        "dateUpdated": "2026-07-24T14:16:04.791Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:hexpm:hexpm:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.HexpmWeb.SharedAuthorizationView'"
                    ],
                    "packageName": "hexpm/hexpm",
                    "packageURL": "pkg:github/hexpm/hexpm",
                    "product": "hexpm",
                    "programFiles": [
                        "lib/hexpm_web/views/shared_authorization_view.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.HexpmWeb.SharedAuthorizationView':render_grouped_scopes/3"
                        }
                    ],
                    "repo": "https://github.com/hexpm/hexpm.git",
                    "vendor": "hexpm",
                    "versions": [
                        {
                            "lessThan": "c692438684ead90c3bcbfb9ccf4e63c768c668a8",
                            "status": "affected",
                            "version": "617e44c71f1dd9043870205f371d375c5c4d886d",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "defaultStatus": "unaffected",
                    "product": "hex.pm",
                    "vendor": "hexpm",
                    "versions": [
                        {
                            "lessThan": "2026-01-19",
                            "status": "affected",
                            "version": "2025-10-01",
                            "versionType": "date"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "cpeMatch": [
                                {
                                    "criteria": "cpe:2.3:a:hexpm:hexpm:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "c692438684ead90c3bcbfb9ccf4e63c768c668a8",
                                    "versionStartIncluding": "617e44c71f1dd9043870205f371d375c5c4d886d",
                                    "vulnerable": true
                                }
                            ],
                            "negate": false,
                            "operator": "AND"
                        }
                    ],
                    "operator": "AND"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Joud Zakharia / zentrust partners GmbH"
                },
                {
                    "lang": "en",
                    "type": "remediation developer",
                    "value": "Jonatan Männchen / EEF"
                },
                {
                    "lang": "en",
                    "type": "remediation reviewer",
                    "value": "Eric Meadows-Jönsson / Hex.pm"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in hexpm hexpm/hexpm ('Elixir.HexpmWeb.SharedAuthorizationView' modules) allows Cross-Site Scripting (XSS).<p> This vulnerability is associated with program files <tt>lib/hexpm_web/views/shared_authorization_view.ex</tt> and program routines <tt>'Elixir.HexpmWeb.SharedAuthorizationView':render_grouped_scopes/3</tt>.</p><p>This issue affects hexpm: from 617e44c71f1dd9043870205f371d375c5c4d886d before c692438684ead90c3bcbfb9ccf4e63c768c668a8; hex.pm: from 2025-10-01 before 2026-01-19.</p>"
                        }
                    ],
                    "value": "Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in hexpm hexpm/hexpm ('Elixir.HexpmWeb.SharedAuthorizationView' modules) allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/hexpm_web/views/shared_authorization_view.ex and program routines 'Elixir.HexpmWeb.SharedAuthorizationView':render_grouped_scopes/3.\n\nThis issue affects hexpm: from 617e44c71f1dd9043870205f371d375c5c4d886d before c692438684ead90c3bcbfb9ccf4e63c768c668a8; hex.pm: from 2025-10-01 before 2026-01-19."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-63",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-63 Cross-Site Scripting (XSS)"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "attackVector": "NETWORK",
                        "baseScore": 8.5,
                        "baseSeverity": "HIGH",
                        "exploitMaturity": "NOT_DEFINED",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "LOW",
                        "subIntegrityImpact": "LOW",
                        "userInteraction": "ACTIVE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
                "shortName": "EEF",
                "dateUpdated": "2026-07-24T14:16:04.791Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory",
                        "related"
                    ],
                    "url": "https://github.com/hexpm/hexpm/security/advisories/GHSA-6cw9-5gg4-rhpj"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://cna.erlef.org/cves/CVE-2026-21618.html"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://osv.dev/vulnerability/EEF-CVE-2026-21618"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/hexpm/hexpm/commit/c692438684ead90c3bcbfb9ccf4e63c768c668a8"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "Cross-site scripting (XSS) in OAuth Device Authorization screen",
            "x_generator": {
                "engine": "Vulnogram 0.5.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-01-20T16:16:45.709727Z",
                                "id": "CVE-2026-21618",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
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                                        "Automatable": "yes"
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                                        "Technical Impact": "total"
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                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "dateUpdated": "2026-01-20T16:16:57.225Z"
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}