Negative Field Length Panic in pgproto3/v2 DataRow.Decode
CVE-2026-32286 Published on March 26, 2026

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

NVD

Vulnerability Analysis

CVE-2026-32286 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

Improper Validation of Specified Index, Position, or Offset in Input

The product receives input that is expected to specify an index, position, or offset into an indexable resource such as a buffer or file, but it does not validate or incorrectly validates that the specified index/position/offset has the required properties.


Products Associated with CVE-2026-32286

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Red Hat Enterprise Linux (RHEL)
 
Red Hat Multicluster Globalhub
 
Red Hat Advanced Cluster Security
 
Red Hat Quay
 
Red Hat Assisted Installer
 
Red Hat Multicluster Engine
 
Red Hat Acm
 
Red Hat Openshift Ai
 
Red Hat Openshift Cluster Manager Cli
 
Red Hat Openshift Service On Aws
 
Red Hat Hummingbird
 
Red Hat Openshift
 
Red Hat Trusted Artifact Signer
 

Affected Versions

github.com/jackc/pgproto3/v2: Red Hat Enterprise Linux AppStream (v. 10): Red Hat Enterprise Linux AppStream (v. 9): Red Hat Multicluster Global Hub 1.3.4: Red Hat Multicluster Global Hub 1.4.5: Red Hat Multicluster Global Hub 1.5.4: Red Hat Multicluster Global Hub 1.6.2: Red Hat Advanced Cluster Security for Kubernetes 4.8: Red Hat Quay 3.12: Red Hat Quay 3.14: Red Hat Quay 3.15: Red Hat Quay 3.16: Red Hat Quay 3.17: Red Hat Quay 3.1: Red Hat Quay 3.9: Assisted Installer for Red Hat OpenShift Container Platform 2: Red Hat Multicluster Engine for Kubernetes: Red Hat Advanced Cluster Management for Kubernetes 2: Red Hat Enterprise Linux 8: Red Hat OpenShift AI (RHOAI): Red Hat OpenShift Cluster Manager CLI: Red Hat OpenShift on AWS: Red Hat Quay 3: Red Hat Multicluster Global Hub: Red Hat Advanced Cluster Security 4: Red Hat Hardened Images: Red Hat OpenShift Container Platform 4: Red Hat Trusted Artifact Signer:

Exploit Probability

EPSS
0.36%
Percentile
27.43%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.