SB2026040143 - Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.19 packages

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Main Vulnerability Database SB2026040143

SB2026040143 - Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.19 packages

Published: April 1, 2026

Security Bulletin ID SB2026040143
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2025-58183)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists in archive/tar due to the tar.Reader does not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A remote attacker can pass a specially crafted archive to the application and perform a denial of service (DoS) attack.


2) Improper Certificate Validation (CVE-ID: CVE-2025-68121)

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper certificate validation within HTTP/3 connections. A remote attacker can cause cause a client to resume a session with a server that it would not have resumed with during the initial handshake


Remediation

Install update from vendor's website.

References