CVE-2026-84462Network attack vectorHinoki check available

Server command execution via AI Agent template bypass

Published Sep 25, 2026 · Updated Sep 25, 2026

Code injection in Zammad 7.1.1 and earlier allows remote authenticated users with AI Agent administration rights to execute server commands. The AI Agent configuration filter fails to reject crafted template syntax in an agent field, so later ticket processing evaluates it as executable code. Exploitation requires permission to create or edit AI Agents; no other user interaction is needed, and commands can read, alter, or destroy server data.

CVSS severity8.6
High
EPSS probability0.28%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Code injection in Zammad 7.1.1 and earlier allows remote authenticated users with AI Agent administration rights to execute server commands. The AI Agent configuration filter fails to reject crafted template syntax in an agent field, so later ticket processing evaluates it as executable code. Exploitation requires permission to create or edit AI Agents; no other user interaction is needed, and commands can read, alter, or destroy server data.

The record

CVE
CVE-2026-84462
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
Zammad GmbH
Product
Zammad
Classifications
CWE-1336, CWE-20, CWE-94, T1190, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=< 7.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Zammad GmbH · Zammadversion=< 7.1.2

Published CVSS scores

8.6ZammadCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
CWE-20Improper Input Validation
CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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