CVE-2026-32286

The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.

What this means for your business

It affects Jackc Pgproto3. It matters if your company, or a supplier that handles your data, runs it.
An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
FIRST's prediction model gives it a 0.7% chance of attack attempts being seen in the next 30 days, ranking above 49% of all known flaws.

What to do

1Check whether your company or your suppliers run Jackc Pgproto3, and which version. The affected versions are listed further down this page.
2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS: 7.5 (v3.1)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-129
Assigned by: security@golang.org

Dates

Published: 2026-03-26
Last modified: 2026-09-10
Sources: NVD

Affected products

Jackc Pgproto32.0.0 - 2.3.3

As listed in the NVD configuration data. Not a statement about your estate.