CVE-2026-47752CWE-1336

Tugtainer has Server-Side Template Injection in notification templates that leads to Remote Code Execution

Critical · published July 23, 2026

CVSS v3.1
9.9
EPSS
1%
Percentile
43.2
In the wild
Unconfirmed
What it is

Tugtainer is a self-hosted app for automating updates of Docker containers. Versions prior to 1.30.2 are vulnerable to Server-Side Template Injection (SSTI) in the notification template feature. The `title_template` and `body_template` fields are rendered using an unsandboxed `jinja2.Environment`, allowing any authenticated user to execute arbitrary OS commands as root inside the container. Version 1.30.2 fixes the issue.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00518 · 43.2th percentile
Weakness
CWE-1336 · Improper Neutralization of Special Elements Used in a Template Engine
Published
2026-07-23T16:57Z
EPSS history
Timeline
  • 23 JUL 16:57Z
    Tugtainer has Server-Side Template Injection in notification templates that leads to Remote Code Execution
    cvelistv5