CVE-2026-5938 Foxit PDF Editor/Reader Infinite Loop Denial-of-Service Vulnerability
A crafted PDF document can cause an infinite loop and UI freeze in Foxit PDF Editor and Reader, leading to denial of service.
- 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-2026-5938?
CVE-2026-5938 is a medium-severity denial of service vulnerability in Foxit Pdf Editor, published on 27 Apr 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
Improper control flow management allows a crafted document action chain to cause modal dialog reentry on the main thread, resulting in UI freeze and denial of service.
Weakness: CWE-691
Which versions are affected by CVE-2026-5938?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2026-5938?
No fix has been published for CVE-2026-5938 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-2026-5938 being exploited?
There is no known exploitation of CVE-2026-5938 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-7r3x-9grv-cr95.