CVE-2026-84462CWE-1336CWE-20CWE-94code-injection

CVE-2026-84462

published September 25, 2026

CVSS
8.6
EPSS
0%
Percentile
19.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.6 · NONE
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00277 · 19.0th percentile
Weaknesses
CWE-1336 · Improper Neutralization of Special Elements Used in a Template Engine; CWE-20 · Improper Input Validation; CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-09-25T22:17Z
References (2)
EPSS history
Timeline
  • 27 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 25 SEP 17:29Z
    Zammad: AI Agent template sanitizer bypass leads to remote code execution
    cvelistv5