djehuty: Unauthenticated SPARQL injection in the search API (`order`, `operator`, `key`)

{
  "id": "8937d3ef1d653c0ceb971cf962cc007b50be7c11ea458f3149b39898c8fe6974",
  "url": "https://osv.dev/vulnerability/CVE-2026-73976",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "djehuty: Unauthenticated SPARQL injection in the search API (`order`, `operator`, `key`)",
    "summary": "djehuty is a research data repository system developed by 4TU.ResearchData. Prior to version 26.3.2, An unauthenticated attacker can inject SPARQL into the search/listing queries through three separate parameters. Because the affected queries are read (SELECT) queries, this does not write to the store, but it allows: Cross-graph data exfiltration — e.g. UNION-ing in triples from graphs the request was never scoped to (drafts/private/internal data held in the RDF store); denial of service — expensive or malformed queries that tie up the SPARQL backend / web workers. No account or user interaction is required. This issue has been patched in version 26.3.2.",
    "evidence": "osv:CVE-2026-73976",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-73976",
      "aliases": [
        "CVE-2026-73976",
        "GHSA-7gp2-rxw9-vw6p"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/4turesearchdata/djehuty",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f40fe003febc9c164798bf2f6330cabd7896a662"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "26.3.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f40fe003febc9c164798bf2f6330cabd7896a662"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v26.3.2"
                  },
                  {
                    "range": [
                      {
                        "introduced": "4TU.ResearchData"
                      },
                      {
                        "fixed": "26.3.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "26.3.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v26.3.1",
            "v26.3",
            "v25.6",
            "v25.5",
            "v25.4",
            "v25.3",
            "v25.2",
            "v25.1",
            "v24.12",
            "v24.11",
            "v24.10.1",
            "v24.10",
            "v24.9",
            "v24.8",
            "v24.7",
            "v24.6",
            "v24.5",
            "v24.4",
            "v24.3",
            "v24.2",
            "v24.1",
            "production",
            "user-testing-4",
            "user-testing-3",
            "user-testing-2",
            "user-testing-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73976.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.643832441Z",
      "provider": "osv",
      "references": [
        "https://github.com/4TUResearchData/djehuty/releases/tag/v26.3.2",
        "https://github.com/4TUResearchData/djehuty/security/advisories/GHSA-7gp2-rxw9-vw6p",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73976.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-73976"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-943"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73976.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-73976",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507180,
  "published_at": "2026-10-01T17:08:11.924+00:00"
}