Excessive Platform Resource Consumption within a Loop Affecting openshift-clients package, versions <0:4.21.0-202609071555.p2.gd0bf7cc.assembly.stream.el9


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.57% (45th percentile)

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  • Snyk IDSNYK-RHEL9-OPENSHIFTCLIENTS-19865706
  • published16 Sept 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-56862  (opens in a new tab)
CWE-1050  (opens in a new tab)

How to fix?

Upgrade RHEL:9 openshift-clients to version 0:4.21.0-202609071555.p2.gd0bf7cc.assembly.stream.el9 or higher.
This issue was patched in RHSA-2026:66350.

NVD Description

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

Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.

CVSS Base Scores

version 3.1