CVE-2026-109205 LogicalDOC Community Edition through 9.3 Unauthenticated Upload Disk Exhaustion via UploadServlet
Remote attackers can exhaust server disk space by repeatedly uploading files via the unauthenticated UploadServlet, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109205?
CVE-2026-109205 is a high-severity denial of service vulnerability in LogicalDOC Community Edition, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
LogicalDOC Community Edition through 9.3 contains an unauthenticated file upload vulnerability in the UploadServlet that allows remote attackers to write files to disk without a session. Attackers can repeatedly send multipart requests with unlimited file parts to /upload, persisting files in uncleaned temporary directories and exhausting server disk space.
Weakness: CWE-770
Which versions are affected by CVE-2026-109205?
How do I fix CVE-2026-109205?
No fix has been published for CVE-2026-109205 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-109205 being exploited?
There is no known exploitation of CVE-2026-109205 in the wild and no public exploit code.
Sources
Also known as GHSA-528h-c74g-p276.