CVE-2026-33816

| EUVD-2026-19709 CRITICAL
2026-04-07 Go GHSA-9jj7-4m8r-rfcm
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
EUVD ID Assigned
Apr 07, 2026 - 16:00 euvd
EUVD-2026-19709
Analysis Generated
Apr 07, 2026 - 16:00 vuln.today
CVE Published
Apr 07, 2026 - 15:19 nvd
CRITICAL 9.8

Tags

Information Disclosure Github Com Jackc Pgx V5 Pgproto3

Description

Memory-safety vulnerability in github.com/jackc/pgx/v5.

Analysis

Memory-safety vulnerability in github.com/jackc/pgx/v5 PostgreSQL driver library allows unauthenticated remote attackers to achieve complete system compromise with high confidentiality, integrity, and availability impact. The vulnerability resides in the pgproto3 subpackage and enables network-accessible exploitation without user interaction. …

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Remediation

Within 24 hours: Identify all applications and services using github.com/jackc/pgx/v5 (any version) through dependency scanning and code inventory; document affected systems and their network exposure. Within 7 days: Isolate affected applications from direct internet/untrusted network access using network segmentation, WAF rules, or similar controls; implement enhanced logging on PostgreSQL connection attempts; contact pgx project maintainers for patch timeline. …

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Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +49
POC: 0

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CVE-2026-33816 vulnerability details – vuln.today
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