Improper Validation of Array Index Affecting osbuild-composer-dnf-json package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.07% (21st percentile)

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  • Snyk IDSNYK-RHEL9-OSBUILDCOMPOSERDNFJSON-15748277
  • published22 Mar 2026
  • disclosed18 Mar 2026

Introduced: 18 Mar 2026

NewCVE-2026-4427  (opens in a new tab)
CWE-129  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 osbuild-composer-dnf-json.

NVD Description

Note: Versions mentioned in the description apply only to the upstream osbuild-composer-dnf-json package and not the osbuild-composer-dnf-json package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1