Vulnerability Report

CVE-2026-34837

Title: Authorization Bypass in AI Assistance text_tools endpoint

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-34837.

CWE Category CWE-862

Published Date Apr 08, 2026

Modified Date Jul 24, 2026

Exploit Status Not Found

Score 5.3 CVSS v4.0

Exploit Probability (EPSS)

0.29%

Vulnerability Summary

CVE-2026-34837: 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.

Impacted Vendors

zammad 1

Reference Links

https://github.com/zammad/zammad/security/advisories/GHSA-89vv-6639-wcv8

CVSS v4.0

Source Entity [email protected]

Severity MEDIUM

5.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW VECTOR

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1