CVE-2026-120067 (GCVE-0-2026-120067)
Vulnerability from cvelistv5 – Published: 2026-11-02 19:09 – Updated: 2026-11-02 19:33
VLAI
EPSS
VEX
Title
psqlODBC stack buffer overflow copying ctid and oid values for updatable cursors
Summary
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.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 19:32 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/postgresql-interfaces/psqlodbc… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| PostgreSQL | psqlODBC |
Affected:
0 , < 18.00.0006
(custom)
|
guessed |
Date Public
2026-11-02 00:00
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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