{
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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-58122",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-06-29T14:13:18.384Z",
        "datePublished": "2026-07-09T21:30:17.166Z",
        "dateUpdated": "2026-07-10T20:31:59.058Z"
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    "containers": {
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                "shortName": "VulnCheck",
                "dateUpdated": "2026-07-09T21:30:17.166Z"
            },
            "title": "Hermes WebUI < 0.51.307 Authentication Bypass via X-Forwarded-For Header Spoofing",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to perform server-side request forgery against internal services including cloud metadata endpoints, overwrite LLM provider configuration and API keys with attacker-controlled values, or initiate OAuth device-code flows to obtain persistent access tokens stored in auth.json."
                }
            ],
            "tags": [
                "x_open-source"
            ],
            "datePublic": "2026-06-06T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-348",
                            "description": "Use of Less Trusted Source",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "defaultStatus": "affected",
                    "vendor": "nesquena",
                    "product": "hermes-webui",
                    "repo": "https://github.com/nesquena/hermes-webui",
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                            "status": "affected",
                            "version": "0",
                            "versionType": "semver",
                            "lessThan": "0.51.307"
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                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
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                        "baseSeverity": "CRITICAL",
                        "baseScore": 9.3,
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                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
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                        "integrityImpact": "HIGH",
                        "availabilityImpact": "NONE",
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                        "baseScore": 9.1,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
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            ],
            "references": [
                {
                    "url": "https://github.com/nesquena/hermes-webui/releases/tag/v0.51.307",
                    "name": "Release Notes",
                    "tags": [
                        "release-notes"
                    ]
                },
                {
                    "url": "https://github.com/nesquena/hermes-webui/pull/3758",
                    "name": "Pull Request",
                    "tags": [
                        "issue-tracking"
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                },
                {
                    "url": "https://github.com/nesquena/hermes-webui/commit/70596e6993be0d4cee083c1c1a86f5e7ad5d57b7",
                    "name": "Patch Commit",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://www.vulncheck.com/advisories/hermes-webui-authentication-bypass-via-x-forwarded-for-header-spoofing",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "fantasticsquirrel",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
                "engine": "vulncheck"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-10T19:12:52.009711Z",
                                "id": "CVE-2026-58122",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "dateUpdated": "2026-07-10T20:31:59.058Z"
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