{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-108741",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-11T01:52:55.363Z",
        "datePublished": "2026-10-11T12:19:45.494Z",
        "dateUpdated": "2026-10-13T17:00:35.001Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-10-11T12:19:45.494Z"
            },
            "datePublic": "2026-10-10T00:00:00.000Z",
            "title": "Shepherd through 0.3.1 SSRF via DNS Rebinding in Citation Checker",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Shepherd (shepherd-ai) through 0.3.1 contains a server-side request forgery guard bypass in the citation-checker extra because the public_url guard validates a resolved address but fetch re-resolves the hostname at connect time. Attackers who plant a crafted reference URL in a checked document and control its DNS can rebind it to internal addresses, sending GET requests to internal HTTP(S) services and capturing responses in evidence files."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Time-of-check Time-of-use (TOCTOU) Race Condition",
                            "cweId": "CWE-367",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "shepherd-agents",
                    "product": "Shepherd",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "0.3.1",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "packageURL": "pkg:pypi/shepherd-ai",
                    "collectionURL": "https://pypi.org",
                    "repo": "https://github.com/shepherd-agents/shepherd"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 2.3,
                        "baseSeverity": "LOW"
                    }
                },
                {
                    "format": "CVSS",
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "NONE",
                        "userInteraction": "REQUIRED",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "NONE",
                        "baseScore": 3.1,
                        "baseSeverity": "LOW"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://hackmd.io/@haind03/shepherd-citation-checker-dns-rebinding-ssrf",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://github.com/shepherd-agents/shepherd/blob/d34d5ca334871dfcb5a3dc76dd78045829fa4e56/shepherd/extras/citation-checker/src/shepherd_citation_checker/_engine/network.py#L9-L17",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "url": "https://github.com/shepherd-agents/shepherd/blob/d34d5ca334871dfcb5a3dc76dd78045829fa4e56/shepherd/extras/citation-checker/src/shepherd_citation_checker/_engine/fetch.py#L34-L55",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "url": "https://github.com/shepherd-agents/shepherd",
                    "tags": [
                        "product"
                    ]
                },
                {
                    "name": "VulnCheck Advisory: Shepherd through 0.3.1 SSRF via DNS Rebinding in Citation Checker",
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://www.vulncheck.com/advisories/shepherd-through-0.3.1-ssrf-via-dns-rebinding-in-citation-checker"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "HaiND from the Post and Telecommunication Institute of Technology",
                    "type": "finder"
                }
            ],
            "x_generator": {
                "engine": "vulncheck-endgame"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-13T15:49:34.302287Z",
                                "id": "CVE-2026-108741",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-13T17:00:35.001Z"
                }
            }
        ]
    }
}