Answer in brief
CVE-2026-120067 records a Medium severity (CVSS 5.9) vulnerability in psqlODBC stack buffer overflow copying ctid and oid values for updatable cursors. The current sources do not mark it as known exploited. The current feed maps PostgreSQL/psqlODBC (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps PostgreSQL/psqlODBC (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| PostgreSQL/psqlODBCgeneric | >=0 <18.00.0006 | 18.00.0006 |
Published upstream
Nov 2, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 2, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 2, 2026
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.
Quoted source text, attributed separately from HOL analysis.