A flaw was found in pgproto3. A malicious or compromised PostgreSQL server can exploit this by sending a DataRow message with a negative field length. This input validation vulnerability can lead to a denial of service (DoS) due to a slice bounds out of range panic.
History

Thu, 19 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 19 Mar 2026 14:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in pgproto3. A malicious or compromised PostgreSQL server can exploit this by sending a DataRow message with a negative field length. This input validation vulnerability can lead to a denial of service (DoS) due to a slice bounds out of range panic.
Title Github.com/jackc/pgproto3: pgproto3: denial of service via negative field length in datarow message
First Time appeared Redhat
Redhat acm
Redhat advanced Cluster Security
Redhat assisted Installer
Redhat enterprise Linux
Redhat multicluster Engine
Redhat multicluster Globalhub
Redhat openshift
Redhat openshift Ai
Redhat openshift Cluster Manager Cli
Redhat openshift Service On Aws
Redhat quay
Redhat trusted Artifact Signer
Weaknesses CWE-129
CPEs cpe:/a:redhat:acm:2
cpe:/a:redhat:advanced_cluster_security:4
cpe:/a:redhat:assisted_installer:2
cpe:/a:redhat:multicluster_engine
cpe:/a:redhat:multicluster_globalhub
cpe:/a:redhat:openshift:4
cpe:/a:redhat:openshift_ai
cpe:/a:redhat:openshift_cluster_manager_cli:1
cpe:/a:redhat:openshift_service_on_aws:1
cpe:/a:redhat:quay:3
cpe:/a:redhat:trusted_artifact_signer:1
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat acm
Redhat advanced Cluster Security
Redhat assisted Installer
Redhat enterprise Linux
Redhat multicluster Engine
Redhat multicluster Globalhub
Redhat openshift
Redhat openshift Ai
Redhat openshift Cluster Manager Cli
Redhat openshift Service On Aws
Redhat quay
Redhat trusted Artifact Signer
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-03-19T20:31:23.297Z

Reserved: 2026-03-19T12:54:24.750Z

Link: CVE-2026-4427

cve-icon Vulnrichment

Updated: 2026-03-19T16:04:33.332Z

cve-icon NVD

Status : Received

Published: 2026-03-19T15:16:28.710

Modified: 2026-03-19T15:16:28.710

Link: CVE-2026-4427

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.