CVE-2026-53488VulnerabilityPublished 9 Jul 2026Updated 22 Oct 2026

Red Hat Security Advisory: Assisted Installer RHEL 9 components for Multicluster Engine for Kubernetes 2.10.4

Affects Red Hat containerdSource GCVE Database

Not known to be exploited · fixed in Ubuntu package updates : patch the affected Ubuntu packages soon.

Data as of 26 Oct 2026, 13:47 UTC

Severity

High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.6.12-0ubuntu1~18.04.1+esm4, 1.6.12-0ubuntu1~20.04.8+esm2, 1.7.24-0ubuntu1~20.04.2+esm2 +8

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
Ubuntu 26.10containerd`pkg:deb/ubuntu/containerd?arch=source&distro=stonking`Other threats	Affected 1.7.24~ds1-10ubuntu1 – 2.1.9+ds1-5ubuntu1 4 affected builds	Fixed in–
Ubuntu 26.04 LTScontainerd-app`pkg:deb/ubuntu/containerd-app?arch=source&distro=resolute`Other threats	Affected <2.2.2-0ubuntu1.1	Fixed in 2.2.2-0ubuntu1.1
Ubuntu 26.04 LTScontainerd-stable`pkg:deb/ubuntu/containerd-stable?arch=source&distro=resolute`Other threats	Affected <2.2.2-0ubuntu1.1	Fixed in 2.2.2-0ubuntu1.1
Ubuntu Pro 26.04 LTScontainerd`pkg:deb/ubuntu/containerd?arch=source&distro=esm-apps/resolute`Other threats	Affected <1.7.24~ds1-10ubuntu1+esm1	Fixed in 1.7.24~ds1-10ubuntu1+esm1
Ubuntu 25.10containerd`pkg:deb/ubuntu/containerd?arch=source&distro=questing`Other threats	Affected 1.7.24~ds1-5ubuntu1 – 1.7.24~ds1-8ubuntu1.1 4 affected builds	Fixed in–
Ubuntu 25.10containerd-app`pkg:deb/ubuntu/containerd-app?arch=source&distro=questing`Other threats	Affected <2.2.1-0ubuntu1~25.10.2	Fixed in 2.2.1-0ubuntu1~25.10.2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

Assisted Installer RHEL 9 integrates components for the general multicluster engine for Kubernetes 2.10.4 release that simplify the process of deploying OpenShift Container Platform clusters. The multicluster engine for Kubernetes provides the foundational components that are necessary for the centralized management of multiple Kubernetes-based clusters across data centers, public clouds, and private clouds. You can use the engine to create new Red Hat OpenShift Container Platform clusters, or to import existing Kubernetes-based clusters for management. After the clusters are managed, you can use the APIs that are provided by the engine to distribute configuration based on placement policy.

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #9OWASP Top 10 A05:2025: Injection (opens in a new tab)
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Architecture and Design
If at all possible, use library calls rather than external processes to recreate the desired functionality.
Architecture and Design · Operation · Sandbox or Jail
Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
Architecture and Design · Attack Surface Reduction
For any data that will be used to generate a command to be executed, keep as much of that data out of external control as possible. For example, in web applications, this may require storing the data locally in the session's state instead of sending it out to the client in a hidden form field.
OWASP Cheat Sheets
Injection Prevention (opens in a new tab)
Injection Prevention in Java (opens in a new tab)
OS Command Injection Defense (opens in a new tab)
Abuse Case (opens in a new tab)
Deserialization (opens in a new tab)
OWASP ASVS 4.0.3
V12.3.5 (opens in a new tab)
V5.3.8 (opens in a new tab)
V1.5.1 (opens in a new tab)
Attack patterns
Command Line Execution through SQL Injection (opens in a new tab)
Command Delimiters (opens in a new tab)
Exploiting Multiple Input Interpretation Layers (opens in a new tab)
Argument Injection (opens in a new tab)
OS Command Injection (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

WeaknessesCWE-78

Technical details

References

Community reviews

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