CVE-2026-18648 Blix Email Blue Mail Calendar App react-native-receive-sharing-intent FileDirectory.getFileFromUri path traversal
Local attackers can exploit path traversal in the react-native-receive-sharing-intent component to read or modify files via manipulated display names.
- 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-2026-18648?
CVE-2026-18648 is a medium-severity path traversal vulnerability in Blix Email Blue Mail Calendar App, published on 3 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was detected in Blix Email Blue Mail Calendar App 2.2.305. Impacted is the function FileDirectory.getDataColumn/FileDirectory.getFileFromUri of the component react-native-receive-sharing-intent. The manipulation of the argument _display_name results in path traversal. The attack is only possible with local access. The exploit is now public 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-2026-18648?
How do I fix CVE-2026-18648?
No fix has been published for CVE-2026-18648 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-2026-18648 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18648 exists.
Sources
Also known as GHSA-fmx4-2vwr-8cfw.