CVE-2026-26068Public exploitNetwork attack vector

Operator RCE via agent metadata shell injection

Published Feb 12, 2026 · Updated Feb 12, 2026

OS command injection in emp3r0r before 3.21.1 allows remote authenticated users to execute commands on the Linux operator host. During check-in, handler_checkin.go persists agent-controlled Transport and Hostname values that tmux helpers interpolate into /bin/sh -c command strings without safe argument handling. Exploitation requires a rogue agent session or stolen valid agent credentials and operator UI processing; injected commands run with the operator account's privileges.

CVSS severity9.3
Critical
EPSS probability3.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in emp3r0r before 3.21.1 allows remote authenticated users to execute commands on the Linux operator host. During check-in, handler_checkin.go persists agent-controlled Transport and Hostname values that tmux helpers interpolate into /bin/sh -c command strings without safe argument handling. Exploitation requires a rogue agent session or stolen valid agent credentials and operator UI processing; injected commands run with the operator account's privileges.

The record

CVE
CVE-2026-26068
Published
Feb 12, 2026
Updated
Feb 12, 2026
Vendor
jm33-m0
Product
emp3r0r
Classifications
CWE-77, CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 3.21.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

jm33-m0 · emp3r0rversion=< 3.21.1

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
9.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix 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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