Read the docs
TI-2021-02934 Aliases CVE-2021-4047GHSA-v3g6-gh83-x752

Improper input validation in OpenShift

Priority LOW 35CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.

Why it matters now

EPSS 0.00934 60th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—OpenShiftOpenShift 4.9—No fix listedCNA
  • OpenShift Vendor— Affected OpenShift 4.9 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:openshift:4.9:*:*:*:*:*:*:*4.9VulnerableRed Hat
  • cpe:2.3:a:redhat:openshift:4.9:*:*:*:*:*:*:* Versions 4.9 Vulnerable ·Red Hat

Remediation

Red Hat 1 advisory

  • RHSA-2021:5002 Released 2021-12-13 · Red Hat rating Moderate
    OpenShift Container Platform 4.9.11 security update
    • Red Hat OpenShift Container Platform 4.9 haproxy-2.2.15-3.el8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift Container Platform 4.9Fixed RHSA-2021:5002
Not affected: 6 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift Container Platform 3.11
  • Red Hat OpenShift Container Platform 4.9
  • Red Hat Software Collections

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-4047
  2. 2026-10-03 Alias added: GHSA-v3g6-gh83-x752

References

Advisory 1

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2015-04472 The Fingerprints pages in Jenkins before 1.638 and LTS before 1.625.2 might allow remote… KEVCVSS 3.1HIGH 7.5
  • TI-2015-06239 Red Hat JBoss A-MQ 6.x; BPM Suite (BPMS) 6.x; BRMS 6.x and 5.x; Data Grid (JDG) 6.x; Data… CVSS 3.0CRITICAL 9.8
  • TI-2019-04061 runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows… CVSS 3.1HIGH 8.6
  • TI-2016-00709 Multiple unspecified API endpoints in Jenkins before 1.650 and LTS before 1.642.2 allow… CVSS 3.0HIGH 8.8
  • TI-2024-11209 Rsync: info leak via uninitialized stack contents CVSS 3.1HIGH 7.5
See all 145 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences