# CVE-2026-109448: psqlodbc: Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameter...

CVE-2026-109448 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-109448, released October 16, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-109448
- Priority: Routine
- CVSS: 5.9 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 12, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | psqlODBC opensuse-leap 16.0 | 18.00.0005-bp160.1.1 | [OPENSUSE-SU-2026:22122-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22122-1.md) | Nov 7, 2026 |
| Linux | psqlodbc Debian 14 | 1:18.00.0005-1 | [DEBIAN-CVE-2026-109448](https://patchblox.com/security/data/fix/linux/debian-cve-2026-109448.md) | Oct 16, 2026 |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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