CVE-2026-47752

CRITICAL

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

Title source: cna

Description

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.

References (1)

Core 1

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/Quenary/tugtainer/security/advisories/GHSA-g2cj-2x47-78vq

Scores

CVSS v3 9.9

EPSS 0.0039

EPSS Percentile 31.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-1336

Status published

Products (1)

Quenary/tugtainer < 1.30.2

Published Jul 23, 2026

Tracked Since Jul 23, 2026