CVE-2026-71567Network attack vectorHinoki check available

Command injection via unquoted shell variables

Published Aug 17, 2026 · Updated Aug 17, 2026

Command injection in OpenShift-Metal3 FakeFish before 526550a allows remote authenticated users to alter cluster state via crafted Image or credential values. The VirtualMedia.InsertMedia handler passes the request Image to custom_scripts/mountcd.sh, and backend scripts such as kubevirt_scripts/mountcd.sh and dell_scripts/mountcd.sh interpolate the Image URL, BMC username, and BMC password into shell commands and oc-applied YAML without consistent quoting or validation. Exposure depends on whether attackers can reach FakeFish endpoints that feed those scripts; on the KubeVirt backend, the Image path can create arbitrary cluster resources with the mounted KUBECONFIG, while vendor-specific backends mainly expose command-line injection into management tools.

CVSS severity7.7
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Command injection in OpenShift-Metal3 FakeFish before 526550a allows remote authenticated users to alter cluster state via crafted Image or credential values. The VirtualMedia.InsertMedia handler passes the request Image to custom_scripts/mountcd.sh, and backend scripts such as kubevirt_scripts/mountcd.sh and dell_scripts/mountcd.sh interpolate the Image URL, BMC username, and BMC password into shell commands and oc-applied YAML without consistent quoting or validation. Exposure depends on whether attackers can reach FakeFish endpoints that feed those scripts; on the KubeVirt backend, the Image path can create arbitrary cluster resources with the mounted KUBECONFIG, while vendor-specific backends mainly expose command-line injection into management tools.

The record

CVE
CVE-2026-71567
Published
Aug 17, 2026
Updated
Aug 17, 2026
Vendor
OpenShift-Metal3
Product
FakeFish
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=28f9a6b

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenShift-Metal3 · FakeFishversion=0 <=28f9a6b

Published CVSS scores

7.7redhat-cnalrCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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