CVE-2026-32286

HIGH LAB

Denial of service in github.com/jackc/pgproto3/v2

Title source: cna

Description

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.

Exploits (1)

nomisec STUB

by moisei-dev · poc

https://github.com/moisei-dev/go-dbmigrate

View Code ZIP pw:eip

References (5)

https://github.com/jackc/pgx/issues/2507

https://github.com/golang/vulndb/issues/4518

https://pkg.go.dev/vuln/GO-2026-4518

[Various Sources] https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgx

https://github.com/advisories/GHSA-jqcq-xjh3-6g23

Scores

CVSS v3 7.5

EPSS 0.0006

EPSS Percentile 18.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Lab Environment

COMMUNITY

Community Lab

docker pull cassandra:2.2

docker pull mongo:3.2.6

https://github.com/moisei-dev/go-dbmigrate

View in Library

Details

Status published

Products (2)

github.com/jackc/pgproto3/v2/github.com/jackc/pgproto3/v2 < 2.0.0

jackc/pgproto3 2.0.0Go

Published Mar 26, 2026

Tracked Since Mar 27, 2026