CVE-2026-109448

Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps that count to -32768. Binding parameter 32769 then writes about 2.5 MB of zeros starting 1.25 MB before the binding array, which crashes the application or leaves it running on a corrupted heap. Applications that build parameter lists from untrusted input, such as an IN (?, ?, ...) list, are exposed. Versions before psqlODBC 18.00.0005 are affected.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-cmfx-rm3r-p2jr

Configurations

No configuration.

History

12 Oct 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-12 18:17

Updated : 2026-10-16 18:17

NVD link : CVE-2026-109448

Mitre link : CVE-2026-109448

CVE.ORG link : CVE-2026-109448

JSON object : View

Products Affected

No product.

CWE

CWE-124

Buffer Underwrite ('Buffer Underflow')

CWE-190

Integer Overflow or Wraparound

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