GHSA-JQCQ-XJH3-6G23

Vulnerability from github – Published: 2026-03-18 13:00 – Updated: 2026-03-30 20:33
VLAI
Summary
Denial of service in github.com/jackc/pgproto3/v2
Details

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.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/jackc/pgproto3/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "last_affected": "2.3.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32286"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-18T13:00:31Z",
    "nvd_published_at": "2026-03-26T20:16:12Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-jqcq-xjh3-6g23",
  "modified": "2026-03-30T20:33:03Z",
  "published": "2026-03-18T13:00:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32286"
    },
    {
      "type": "WEB",
      "url": "https://github.com/golang/vulndb/issues/4518"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jackc/pgx/issues/2507"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448626"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jackc/pgproto3"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2026-4518"
    },
    {
      "type": "WEB",
      "url": "https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgx"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of service in github.com/jackc/pgproto3/v2"
}


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