Vulnerability · Published Nov 2, 2026 · Assigned by PostgreSQL
CVE-2026-120064psqlODBC does not validate column numbers and row indexes in binding and descriptor functions
High 7.5
In plain English
A high-severity integer overflow in psqlODBC from PostgreSQL. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Several psqlODBC entry points use an application-supplied column number or row index as an array index without validating it. SQLBindCol with a column number above 32767 wraps the binding count negative and a later copy runs off the array. A negative SQL_DESC_COUNT on an application row descriptor unbinds columns at negative indexes. SQLColAttribute with a very large column number uses a negative index. SQLSetPos(SQL_ADD) does not check the row number against the rowset size. An application that forwards untrusted column or row numbers exposes its process to out-of-bounds reads and writes. Versions before psqlODBC 18.00.0006 are affected.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | psqlodbc | no fix listed | DEBIAN-CVE-2026-120064 |
| Debian:13 | psqlodbc | no fix listed | DEBIAN-CVE-2026-120064 |
| Debian:14 | psqlodbc | 1:18.00.0006-1 | DEBIAN-CVE-2026-120064 |
| Ubuntu:22.04:LTS | psqlodbc | no fix listed | UBUNTU-CVE-2026-120064 |
| Ubuntu:24.04:LTS | psqlodbc | no fix listed | UBUNTU-CVE-2026-120064 |
| Ubuntu:26.04:LTS | psqlodbc | no fix listed | UBUNTU-CVE-2026-120064 |
| Ubuntu:26.10 | psqlodbc | no fix listed | UBUNTU-CVE-2026-120064 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| PostgreSQL | psqlODBC | 0 – before 18.00.0006 |
Weakness: CWE-129, CWE-190 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H