CVE-2026-27644 traccar allows CSV formula injection via exported position data

Medium 6.5 Published 5 May 2026 Updated 5 May 2026

Attackers can inject malicious formulas into CSV exports, leading to code execution or data exfiltration when administrators open the file.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-27644?

CVE-2026-27644 is a medium-severity code injection vulnerability in traccar, published on 5 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Traccar is an open source GPS tracking system. In versions between 6.11.1 and 6.13.0, the CSV export functionality writes position data, including user-controlled device and computed attributes, to CSV output without proper escaping. An attacker can inject spreadsheet formulas through exported fields. When a manager or administrator opens the exported CSV file in spreadsheet software, this can cause formula execution and lead to command execution or data exfiltration. This has been patched in version 6.13.0.

Weakness: CWE-1236

Which versions are affected by CVE-2026-27644?

It affects 1 product.

Products include Traccar Traccar.

How do I fix CVE-2026-27644?

No fix has been published for CVE-2026-27644 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-27644 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27644 exists.

Sources

Also known as GHSA-745r-9qgj-x7m7.