CVE-2026-5455 Dialogue App ca.diagram.dialogue config.json hard-coded key
Local attackers can exploit a hard-coded cryptographic key in the Dialogue App to bypass security controls and access protected data.
- 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-2026-5455?
CVE-2026-5455 is a medium-severity vulnerability in Dialogue App, published on 3 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was determined in Dialogue App up to 4.3.2 on Android. The affected element is an unknown function of the file file res/raw/config.json of the component ca.diagram.dialogue. Executing a manipulation of the argument SEGMENT_WRITE_KEY can lead to use of hard-coded cryptographic key . The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-5455?
How do I fix CVE-2026-5455?
No fix has been published for CVE-2026-5455 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-5455 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5455 exists.
Sources
Also known as GHSA-8mvv-fc8c-63jh.