CVE-2026-84852 Reader Tools PDF Reader App File ActSplashNew.handleDeeplink path traversal
A local attacker can exploit a path traversal vulnerability in the PDF Reader App's deep link handler to read or modify arbitrary files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84852?
CVE-2026-84852 is a medium-severity path traversal vulnerability in PDF Reader App, published on 2 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A security vulnerability has been detected in Reader Tools PDF Reader App 98.8 on Android. The affected element is the function ActSplashNew.handleDeeplink of the component File Handler. The manipulation of the argument _display_name leads to path traversal. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-22
Which versions are affected by CVE-2026-84852?
How do I fix CVE-2026-84852?
No fix has been published for CVE-2026-84852 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-84852 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84852 exists.
Sources
Also known as GHSA-f7w8-m7h2-x4cg.