CVE-2026-120058
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 sizes its row cache from the column count of a cursor's first result, but recomputes the column count from each later FETCH reply without checking that it matches. A server not trusted under current SSL settings can answer a later FETCH with more columns and make the driver write tuple records past the end of the heap allocation. A keyset reply with fewer columns than the key fields also underflows the unsigned field count. This is reachable with UseDeclareFetch enabled. 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 |