{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-75513", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-17T20:49:21.599Z", "datePublished": "2026-09-16T20:46:17.189Z", "dateUpdated": "2026-09-19T01:55:24.743Z" }, "containers": { "cna": { "title": "Marten: SQL injection in Marten's LINQ provider via unescaped string literals", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-89", "lang": "en", "description": "CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')", "type": "CWE" } ] } ], "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" } } ], "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" } ], "affected": [ { "vendor": "JasperFx", "product": "marten", "versions": [ { "version": ">= 7.0.0, < 9.13.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-16T20:46:17.189Z" }, "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." } ], "source": { "advisory": "GHSA-rfx3-98h7-v3xp", "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/JasperFx/marten/security/advisories/GHSA-rfx3-98h7-v3xp", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-19T01:54:54.693812Z", "id": "CVE-2026-75513", "options": [ { "Exploitation": "poc" }, { "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": "2026-09-19T01:55:24.743Z" } } ] } }