{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.3.1"
              },
              {
                "fixed": "0.3.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d34d5ca334871dfcb5a3dc76dd78045829fa4e56"
            }
          ],
          "repo": "https://github.com/shepherd-agents/shepherd",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-367"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108741.json"
  },
  "details": "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.",
  "id": "CVE-2026-108741",
  "modified": "2026-10-15T02:30:59.511563920Z",
  "published": "2026-10-11T12:19:45.494Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://pypi.org"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108741.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://hackmd.io/@haind03/shepherd-citation-checker-dns-rebinding-ssrf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-108741"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/shepherd-through-0.3.1-ssrf-via-dns-rebinding-in-citation-checker"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/shepherd-agents/shepherd"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/shepherd-agents/shepherd/blob/d34d5ca334871dfcb5a3dc76dd78045829fa4e56/shepherd/extras/citation-checker/src/shepherd_citation_checker/_engine/fetch.py#L34-L55"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/shepherd-agents/shepherd/blob/d34d5ca334871dfcb5a3dc76dd78045829fa4e56/shepherd/extras/citation-checker/src/shepherd_citation_checker/_engine/network.py#L9-L17"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Shepherd through 0.3.1 SSRF via DNS Rebinding in Citation Checker"
}