CVE-2026-120063: medium-severity vulnerability in PostgreSQL psqlODBC
psqlODBC stack buffer overflow when quoting long schema and table names
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.3%
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 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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
Affected products
PostgreSQL · psqlODBCRelated CVEs — PostgreSQL psqlODBC
In the same product, most dangerous first.
CVE-2026-120062HIGHpsqlODBC SQL injection through SQLSpecialColumns table and schema namesEPSS 0.4%CVE-2026-120067MEDIUMpsqlODBC stack buffer overflow copying ctid and oid values for updatable cursorsEPSS 0.3%CVE-2026-120064HIGHpsqlODBC does not validate column numbers and row indexes in binding and descriptor functionsEPSS 0.3%CVE-2026-120061HIGHpsqlODBC ODBC escape parser stack buffer overflowEPSS 0.3%CVE-2026-120065HIGHpsqlODBC does not escape a server-supplied column name in its updatable-cursor queriesEPSS 0.3%CVE-2026-120059MEDIUMpsqlODBC uses a server-supplied column name as a format stringEPSS 0.3%