# CVE-2026-120057: psqlodbc: psqlODBC copies the reply to a large-object read (loread) into the application's buffer using the length sent by the...

CVE-2026-120057 is fixed in psqlodbc on 1 platform by DEBIAN-CVE-2026-120057 (version 1:18.00.0006-1), released November 5, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-120057
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 2, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | psqlodbc Debian 14 | 1:18.00.0006-1 | [DEBIAN-CVE-2026-120057](https://patchblox.com/security/data/fix/linux/debian-cve-2026-120057.md) | Nov 5, 2026 |

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Data as of 2026-11-09T13:31:49Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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