CVE-2026-1064Public exploitNetwork attack vector

Managed-host command execution via unescaped authorized_keys path

Published Jan 17, 2026 · Updated Jan 17, 2026

Command injection in Bastillion 4.0.0 and 4.0.1 allows remote authenticated users to execute shell commands on managed systems. SystemKtrl accepts an authorized_keys path from /manage/saveSystem, and SSHUtil concatenates the stored value into cat, echo, and chmod commands without shell escaping. System creation or edit privileges and a key-distribution trigger are required; injected commands run on each affected managed host.

CVSS severity4.7
Medium
EPSS probability4.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Bastillion 4.0.0 and 4.0.1 allows remote authenticated users to execute shell commands on managed systems. SystemKtrl accepts an authorized_keys path from /manage/saveSystem, and SSHUtil concatenates the stored value into cat, echo, and chmod commands without shell escaping. System creation or edit privileges and a key-distribution trigger are required; injected commands run on each affected managed host.

The record

CVE
CVE-2026-1064
Published
Jan 17, 2026
Updated
Jan 17, 2026
Vendor
Loophole, LLC
Product
Bastillion
Classifications
CWE-74, CWE-77, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 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=4.0.0
  2. Affected versionversion=4.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Loophole, LLC · Bastillionversion=4.0.0; version=4.0.1

Published CVSS scores

5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

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.

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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 exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

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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