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CVE-2026-68121VulnerabilityPublished Updated

Red Hat Security Advisory: OpenShift Container Platform 4.19.52 bug fix and security update

Affects Red HatSource GCVE Database

0
Authoritative record:CVE-2026-68121· High 7.8

Not known to be exploited · CVSS 7.8 High · fixed in Red Hat package updates : patch Red Hat soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e6493a4d1ee17595766165fa446d45b7e0c318d0, e9c238f6fe42fb1b4dba3a578277de32cb487937, bed4caecd723693f750e13adbb2c42ca1249a3fd +5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e6493a4d1ee17595766165fa446d45b7e0c318d0
Fixed in
  • e6493a4d1ee17595766165fa446d45b7e0c318d0
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e9c238f6fe42fb1b4dba3a578277de32cb487937
Fixed in
  • e9c238f6fe42fb1b4dba3a578277de32cb487937
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < bed4caecd723693f750e13adbb2c42ca1249a3fd
Fixed in
  • bed4caecd723693f750e13adbb2c42ca1249a3fd
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ba3409369c5413cdf0dcbf3a928f76b48e8c3e6a
Fixed in
  • ba3409369c5413cdf0dcbf3a928f76b48e8c3e6a
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6866abf59976d273164a6624234d96a967280223
Fixed in
  • 6866abf59976d273164a6624234d96a967280223
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 7e9fbd7f96bcde63a7c798fe16b38cedee7a1501
Fixed in
  • 7e9fbd7f96bcde63a7c798fe16b38cedee7a1501

Description

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.19.52. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:83478 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/release_notes/ Security Fix(es): * kernel: pppoe: reload header pointer after dev_hard_header() (CVE-2026-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html-single/updating_clusters/index#updating-cluster-cli.

References

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