# CVE-2026-120058: psqlodbc: psqlODBC sizes its row cache from the column count of a cursor's first result, but recomputes the column count from e...

CVE-2026-120058 is fixed in psqlodbc on 1 platform by DEBIAN-CVE-2026-120058 (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-2026-120058
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 2, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | psqlodbc Debian 14 | 1:18.00.0006-1 | [DEBIAN-CVE-2026-120058](https://patchblox.com/security/data/fix/linux/debian-cve-2026-120058.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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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