CVE-2026-56652 Formula Injection in dool project
Attackers can inject malicious formulas into CSV exports via crafted process names, leading to code execution when victims open the file in spreadsheet software.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-56652?
CVE-2026-56652 is a medium-severity code injection vulnerability in scottchiefbaker dool, published on 27 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Dool in versions up to 1.3.8 is vulnerable to a CSV injection vulnerability when exporting data to a CSV file, as it fails to sanitize cell content beginning with special formula characters like =, +, -, or @. A local attacker can exploit this by running a process with a crafted name starting with =, which injects malicious formulas into the CSV output that execute when a victim opens the file in a spreadsheet application. The issue was addressed by pull request #117
Weakness: CWE-1236
Which versions are affected by CVE-2026-56652?
How do I fix CVE-2026-56652?
No fix has been published for CVE-2026-56652 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-2026-56652 being exploited?
There is no known exploitation of CVE-2026-56652 in the wild and no public exploit code.
Sources
Also known as GHSA-w3j2-f8wq-g63j.