{"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"}}]}}