CVE-2026-120067
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
62/100
Published: 2026-11-02
Modified: 2026-11-02
First seen: 2026-11-02
Status: active
Attack Surface
Network
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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 Software (2)
| Vendor | Product | Version |
|---|---|---|
| PostgreSQL | psqlODBC | 0 < 18.00.0006 |
| PostgreSQL | psqlODBC | 0 < 18.00.0006 |