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Vulnerability record · CVE-2026-47752 · published 23 July 2026

CVE-2026-47752: Tugtainer is a self-hosted app for automating updates of Docker containers.

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.

9.9 CVSS 3.1 Critical EPSS 0.52% · top 58.3% CWE-1336 · CWE-1336 Deferred
9.9CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
23 Jul 2026Last modified by NVD

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.

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

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-47752), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.