CVE-2026-33816

Published Apr 7, 2026

Last updated 5 days ago

CVSS critical 9.8

Overview

Description: Memory-safety vulnerability in github.com/jackc/pgx/v5.
Source: security@golang.org
NVD status: Analyzed
Products: pgx

Risk scores

CVSS 3.1

Type: Secondary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

nvd@nist.gov: NVD-CWE-noinfo

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:jackc:pgx:*:*:*:*:*:go:*:*",
            "matchCriteriaId": "AA69804B-B8E3-4C7D-AD5D-3CB7616C6E4B",
            "versionEndExcluding": "5.9.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

pgx is a PostgreSQL driver and toolkit for Go. Prior to version 5.9.2, SQL injection can occur when the non-default simple protocol is used, a dollar quoted string literal is used in the SQL query, that string literal contains text that would be would be interpreted as a placeholder outside of a string literal, and the value of that placeholder is controllable by the attacker. This issue has been patched in version 5.9.2.•CVE-2026-41889
Memory-safety vulnerability in github.com/jackc/pgx/v5.•CVE-2026-33815
pgx is a PostgreSQL driver and toolkit for Go. SQL injection can occur if an attacker can cause a single query or bind message to exceed 4 GB in size. An integer overflow in the calculated message size can cause the one large message to be sent as multiple messages under the attacker's control. The problem is resolved in v4.18.2 and v5.5.4. As a workaround, reject user input large enough to cause a single query or bind message to exceed 4 GB in size.•CVE-2024-27304
pgx is a PostgreSQL driver and toolkit for Go. Prior to version 4.18.2, SQL injection can occur when all of the following conditions are met: the non-default simple protocol is used; a placeholder for a numeric value must be immediately preceded by a minus; there must be a second placeholder for a string value after the first placeholder; both must be on the same line; and both parameter values must be user-controlled. The problem is resolved in v4.18.2. As a workaround, do not use the simple protocol or do not place a minus directly before a placeholder. •CVE-2024-27289

References

Sources include official advisories and independent security research.

https://nvd.nist.gov/vuln/detail/CVE-2026-33816
https://pkg.go.dev/vuln/GO-2026-4772

Overview

Risk scores

CVSS 3.1

Weaknesses

Social media

Configurations

Related CVEs

References