CVE-2026-120060

Medium

Description

psqlODBC trusts counts and lengths in server data in three places. SQLBulkOperations uses a server-supplied row count in a size subtraction that can underflow. SQLStatistics iterates index keys using a server-supplied key count without bounding it to the fixed storage. Bytea octal decoding reads up to two bytes past the end of a truncated escape sequence. A server not trusted under current SSL settings can crash the client or make it read out of bounds. Versions before psqlODBC 18.00.0006 are affected.

SeverityMedium

CVSS5.9

Exploit probability—

Product

psqlODBC

PublishedNov 2, 2026

First seenNov 4, 2026

Weakness typeCWE-125Out-of-bounds read CWE-191CWE-191

How to fix

Update

PostgreSQL psqlODBC18.00.0006 or later

Vendor advisories

github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-4mfx-cfxx-c877

Affected products

Product	Affected versions	Fixed in
PostgreSQL psqlODBC	v < 18.00.0006	18.00.0006

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