{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120067", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-10-30T19:25:18.920Z", "datePublished": "2026-11-02T19:09:15.519Z", "dateUpdated": "2026-11-02T19:33:08.506Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-11-02T19:09:15.519Z"}, "title": "psqlODBC stack buffer overflow copying ctid and oid values for updatable cursors", "datePublic": "2026-11-02T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "For updatable cursors, which are enabled by default, psqlODBC adds hidden ctid and, for tables with OIDs, oid columns to the query. It copies each value into a 32-byte stack buffer using the length the server sent, without checking it against the buffer size, so a value of 32 bytes or more writes past the buffer. A server not trusted under current SSL settings can send such a value. So can any database user who can create a view with its own column named ctid that the application reads with an updatable cursor. Builds with _FORTIFY_SOURCE abort; other builds overwrite adjacent stack memory. Versions before psqlODBC 18.00.0006 are affected."}], "affected": [{"vendor": "PostgreSQL", "product": "psqlODBC", "repo": "https://github.com/postgresql-interfaces/psqlodbc", "programFiles": ["qresult.c"], "programRoutines": [{"name": "QR_read_tuples_from_pgres"}], "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThan": "18.00.0006", "status": "affected", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}}], "workarounds": [{"lang": "en", "value": "Set UpdatableCursors=0 in the connection string or DSN, so the driver does not add the keyset columns."}], "solutions": [{"lang": "en", "value": "Upgrade to psqlODBC 18.00.0006 or later. The driver rejects a keyset value that does not fit its buffer, and the query fails with SQLSTATE HY000."}], "references": [{"url": "https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-3r96-h2q4-6pxh", "tags": ["vendor-advisory"]}], "credits": [{"lang": "en", "type": "finder", "value": "Deus Rex"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-02T19:32:53.485832Z", "id": "CVE-2026-120067", "options": [{"Exploitation": "none"}, {"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": "2026-11-02T19:33:08.506Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120067", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-10-30T19:25:18.920Z", "datePublished": "2026-11-02T19:09:15.519Z", "dateUpdated": "2026-11-02T19:33:08.506Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-11-02T19:09:15.519Z"}, "title": "psqlODBC stack buffer overflow copying ctid and oid values for updatable cursors", "datePublic": "2026-11-02T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "For updatable cursors, which are enabled by default, psqlODBC adds hidden ctid and, for tables with OIDs, oid columns to the query. It copies each value into a 32-byte stack buffer using the length the server sent, without checking it against the buffer size, so a value of 32 bytes or more writes past the buffer. A server not trusted under current SSL settings can send such a value. So can any database user who can create a view with its own column named ctid that the application reads with an updatable cursor. Builds with _FORTIFY_SOURCE abort; other builds overwrite adjacent stack memory. Versions before psqlODBC 18.00.0006 are affected."}], "affected": [{"vendor": "PostgreSQL", "product": "psqlODBC", "repo": "https://github.com/postgresql-interfaces/psqlodbc", "programFiles": ["qresult.c"], "programRoutines": [{"name": "QR_read_tuples_from_pgres"}], "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThan": "18.00.0006", "status": "affected", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}}], "workarounds": [{"lang": "en", "value": "Set UpdatableCursors=0 in the connection string or DSN, so the driver does not add the keyset columns."}], "solutions": [{"lang": "en", "value": "Upgrade to psqlODBC 18.00.0006 or later. The driver rejects a keyset value that does not fit its buffer, and the query fails with SQLSTATE HY000."}], "references": [{"url": "https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-3r96-h2q4-6pxh", "tags": ["vendor-advisory"]}], "credits": [{"lang": "en", "type": "finder", "value": "Deus Rex"}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-120067", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-02T19:32:53.485832Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-02T19:33:00.937Z"}}]}}

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