{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "7.0.0"
              },
              {
                "fixed": "9.13.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "a038877822c1c1df8ca764ebf2d7f9f7ab64b7a0"
            },
            {
              "fixed": "61882d0424854cb48703f08bdb246894ac576bed"
            },
            {
              "fixed": "a61ef90b210ab7981be7f622406e1c3e39fcc0f0"
            }
          ],
          "repo": "https://github.com/jasperfx/marten",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-rfx3-98h7-v3xp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-89"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75513.json"
  },
  "details": "Marten is a .NET Transactional Document DB and Event Store on PostgreSQL. From version 7.0.0 until 9.13.0, several Marten LINQ and tenant-management paths interpolate runtime, potentially attacker-controlled strings into single-quoted SQL literals without escaping or parameterization. The primary confirmed vector is a dictionary indexer key used by Where filters in src/Marten/Linq/Members/Dictionaries/DictionaryItemMember.cs. Additional affected sinks include SelectParser.cs, DatabaseScopedTenantPartitions.cs, and DeleteAllForTenant.cs reached through IEventStore.DeleteProjectionProgressAsync, while DictionaryContainsKeyFilter.cs (Newtonsoft serializer only; System.Text.Json is not affected) handles ContainsKey calls. Events/Daemon/Internals/EventLoader.cs contains a related per-tenant partition-pruning literal that the advisory identifies as a defense-in-depth sink. A crafted single quote can escape the generated literal, enabling filter or multi-tenant authorization bypass and blind data exfiltration, and deployments that permit semicolon-batched Npgsql statements may also allow data modification. This issue is fixed in version 9.13.0.",
  "id": "CVE-2026-75513",
  "modified": "2026-09-18T03:30:58.204340411Z",
  "published": "2026-09-16T20:46:17.189Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/JasperFx/marten/releases/tag/9.13.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75513.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/JasperFx/marten/security/advisories/GHSA-rfx3-98h7-v3xp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75513"
    },
    {
      "type": "FIX",
      "url": "https://github.com/JasperFx/marten/commit/61882d0424854cb48703f08bdb246894ac576bed"
    },
    {
      "type": "FIX",
      "url": "https://github.com/JasperFx/marten/pull/4911"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Marten: SQL injection in Marten's LINQ provider via unescaped string literals"
}