Vulnerability-Lookup

CVE-2026-75513 (GCVE-0-2026-75513)

Vulnerability from cvelistv5 – Published: 2026-09-16 20:46 – Updated: 2026-09-16 20:46

Title

Marten: SQL injection in Marten's LINQ provider via unescaped string literals

Summary

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.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/JasperFx/marten/security/advis…	x_refsource_CONFIRM
https://github.com/JasperFx/marten/pull/4911	x_refsource_MISC
https://github.com/JasperFx/marten/commit/61882d0…	x_refsource_MISC
https://github.com/JasperFx/marten/releases/tag/9.13.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
JasperFx	marten	Affected: >= 7.0.0, < 9.13.0	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "marten",
          "vendor": "JasperFx",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 9.13.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-89",
              "description": "CWE-89: Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T20:46:17.189Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/JasperFx/marten/security/advisories/GHSA-rfx3-98h7-v3xp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/JasperFx/marten/security/advisories/GHSA-rfx3-98h7-v3xp"
        },
        {
          "name": "https://github.com/JasperFx/marten/pull/4911",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/JasperFx/marten/pull/4911"
        },
        {
          "name": "https://github.com/JasperFx/marten/commit/61882d0424854cb48703f08bdb246894ac576bed",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/JasperFx/marten/commit/61882d0424854cb48703f08bdb246894ac576bed"
        },
        {
          "name": "https://github.com/JasperFx/marten/releases/tag/9.13.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/JasperFx/marten/releases/tag/9.13.0"
        }
      ],
      "source": {
        "advisory": "GHSA-rfx3-98h7-v3xp",
        "discovery": "UNKNOWN"
      },
      "title": "Marten: SQL injection in Marten\u0027s LINQ provider via unescaped string literals"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-75513",
    "datePublished": "2026-09-16T20:46:17.189Z",
    "dateReserved": "2026-08-17T20:49:21.599Z",
    "dateUpdated": "2026-09-16T20:46:17.189Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-75513\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-09-16T21:17:13.440\",\"lastModified\":\"2026-09-16T21:17:13.563\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"JasperFx\",\"product\":\"marten\",\"versions\":[{\"version\":\"\u003e= 7.0.0, \u003c 9.13.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.1,\"impactScore\":5.3}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-89\"}]}],\"references\":[{\"url\":\"https://github.com/JasperFx/marten/commit/61882d0424854cb48703f08bdb246894ac576bed\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/JasperFx/marten/pull/4911\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/JasperFx/marten/releases/tag/9.13.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/JasperFx/marten/security/advisories/GHSA-rfx3-98h7-v3xp\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}

FKIE_CVE-2026-75513

Vulnerability from fkie_nvd - Published: 2026-09-16 21:17 - Updated: 2026-09-16 21:17

Severity

9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/JasperFx/marten/commit/61882d0424854cb48703f08bdb246894ac576bed
	security-advisories@github.com	https://github.com/JasperFx/marten/pull/4911
	security-advisories@github.com	https://github.com/JasperFx/marten/releases/tag/9.13.0
	security-advisories@github.com	https://github.com/JasperFx/marten/security/advisories/GHSA-rfx3-98h7-v3xp

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "marten",
          "vendor": "JasperFx",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 9.13.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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",
  "lastModified": "2026-09-16T21:17:13.563",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 5.3,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-16T21:17:13.440",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/JasperFx/marten/commit/61882d0424854cb48703f08bdb246894ac576bed"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/JasperFx/marten/pull/4911"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/JasperFx/marten/releases/tag/9.13.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/JasperFx/marten/security/advisories/GHSA-rfx3-98h7-v3xp"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.