CVE-2026-84462

Zammad: AI Agent template sanitizer bypass leads to remote code execution

State
Published
Severity
8.6 High
Published
Sep 25, 2026
Updated
Sep 25, 2026
Reserved
Sep 1, 2026

Read the record on cve.org

Description

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, a security filter that protects Zammad's AI Agent configuration can be bypassed by entering specially crafted text into one of an AI Agent's fields. An administrator with permission to create or edit AI Agents could exploit this to run arbitrary commands on the server that hosts Zammad, potentially reading, modifying, or destroying all data stored on that server. No interaction from other users is needed; the malicious code runs automatically the next time the affected AI Agent processes a ticket. This issue is fixed in version 7.1.2.

Scores

CVSSScoreVectorSource
4.08.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NGitHub_M

Weaknesses

  • CWE-20 Improper Input Validation
  • CWE-94 Improper Control of Generation of Code ('Code Injection')
  • CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine

Affected Products

ProductVersions
zammadzammad
  • < 7.1.2Affected

References

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