{"id":"CVE-2026-120063","title":"psqlODBC stack buffer overflow when quoting long schema and table names","summary":"When psqlODBC quotes a schema or table name into a 128-byte stack buffer, its length check lets it write up to two bytes past the end of the buffer for a long name. The names come from the application's SQL text: the table of a statement…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H","cvssSource":"cna","cwe":["CWE-121","CWE-787"],"vendor":"PostgreSQL","product":"psqlODBC","affected":["psqlODBC < 18.00.0006"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-02T19:36:05.190717Z"},"published":"2026-11-02","updated":"2026-11-02","sourceUpdated":"2026-11-02T19:36:16.948Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-120063","references":[{"url":"https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-285r-84w3-xcxv"}],"tags":["cve.org"],"epss":0.00271,"epssPercentile":0.19427,"ingestedAt":"2026-11-05T19:30:42.803Z","slug":"CVE-2026-120063","body":"## Overview\n\nWhen psqlODBC quotes a schema or table name into a 128-byte stack buffer, its length check lets it write up to two bytes past the end of the buffer for a long name. The names come from the application's SQL text: the table of a statement the driver parses to describe its columns, and the target of the last INSERT when the driver rewrites SELECT @@IDENTITY. In the @@IDENTITY rewrite, a column name sent by the server can also write one byte past the buffer. The bytes written past the buffer are a double quote and a NUL. An application that forwards untrusted SQL text to the driver exposes its process to stack corruption. Versions before psqlODBC 18.00.0006 are affected.\n\n## Affected\n\n- `psqlODBC < 18.00.0006`\n\n## Remediation\n\nUpgrade to psqlODBC 18.00.0006 or later. identifierEscape bounds every write to the output buffer, including the closing quote and the terminator.\n\n### Workarounds\n\nDo not pass SQL text from untrusted sources to the driver.","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}