Path Traversal in Traccar
CVE-2026-23521
Versions of the Traccar open-source GPS tracking system up to and including 6.11.1 contain an issue in which authenticated users who can create or edit devices can set a device `uniqueId` to an absolute path. When uploading a device image, Traccar uses that `uniqueId` to build the filesystem path without enforcing that the resolved path stays under the media root. This allows writing files outside the media directory. As of time of publication, it is unclear whether a fix is available.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.003 (24.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Traccar — versions <= 6.11.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-23521?
- CVE-2026-23521 is a medium-severity vulnerability in Traccar, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-02-23.
- How severe is CVE-2026-23521?
- Medium severity. CVSS v3 base score is 6.5 out of 10.