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CVE-2026-34837— Zammad is miissing authorization in AI assistance controller for context data used in text tools

Quick assessment

Affected
zammad zammad
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zammad是德国Zammad公司的一套票务管理软件。 Zammad 7.0.1之前版本存在安全漏洞，该漏洞源于REST端点存在授权失败，可能导致未授权数据出现在AI提示中。

AI Predicted 6.5 Difficulty: Easy EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1078.004 · Cloud Accounts
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I. Basic Information for CVE-2026-34837

Vulnerability Information
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Vulnerability Title
Zammad is miissing authorization in AI assistance controller for context data used in text tools
Source: CVE Program / CVE List V5
Vulnerability Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, he REST endpoint POST /api/v1/ai_assistance/text_tools/:id contains an authorization failure. Context data (e.g., a group or organization) supplied to be used in the AI prompt were not checked if they are accessible for the current user. This leads to having data present in the AI prompt that were not authorized before being used. A user needs to have ticket.agent permission to be able to use the provided context data. This vulnerability is fixed in 7.0.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Zammad 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zammad是德国Zammad公司的一套票务管理软件。 Zammad 7.0.1之前版本存在安全漏洞，该漏洞源于REST端点存在授权失败，可能导致未授权数据出现在AI提示中。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

II. Public POCs for CVE-2026-34837

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III. Intelligence Information for CVE-2026-34837

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Same Patch Batch · zammad · 2026-04-08 · 10 CVEs total

CVE-2026-34722 Zammad is missing authorization in ticket create endpoint
CVE-2026-34724 Zammad has a server-side template injection leading to RCE via AI Agent
CVE-2026-34248 Zammad has an information disclosure in ticket detail view of customers in shared organiza
CVE-2026-34720 Zammad has an origin validation error in SSO mechanism
CVE-2026-34721 Zammad has Cross-site request forgery (CSRF) in OAuth callback endpoints
CVE-2026-34719 Zammad has a Server-side request forgery (SSRF) via webhooks
CVE-2026-34718 Zammad improperly neutralizes of script-related HTML tags in ticket articles
CVE-2026-34782 Zammad has improper access control in AI assistance controller for text tools
CVE-2026-34723 Zammad has incorrect access control in getting_started_controller

IV. Related Vulnerabilities

Same product: zammad
Same vendor: zammad
Same weakness: CWE-862

V. Comments for CVE-2026-34837

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