CVE-2026-120057
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
55/100
Published: 2026-11-02
Modified: 2026-11-02
First seen: 2026-11-02
Status: active
Attack Surface
Network
No Auth
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
Required
S:
Unchanged
C:
High
I:
High
A:
High
Description
psqlODBC copies the reply to a large-object read (loread) into the application's buffer using the length sent by the server, without comparing it to the buffer size. A server not trusted under current SSL settings, or a man-in-the-middle, can return more bytes than the buffer holds and overwrite adjacent memory in the client process with server-chosen bytes. Fetching any large-object column is sufficient to trigger it. Versions before psqlODBC 18.00.0006 are affected.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| PostgreSQL | psqlODBC | 0 < 18.00.0006 |
| PostgreSQL | psqlODBC | 0 < 18.00.0006 |