CVE-2026-49311 Missing authorization in HarmonyOS
Attackers can exploit permission control flaws in the event notification module to disrupt system availability on HarmonyOS devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-49311?
CVE-2026-49311 is a medium-severity missing authorization vulnerability in Huawei HarmonyOS, published on 9 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Permission control vulnerability in the event notification module.Impact: Successful exploitation of this vulnerability may affect availability.
Weakness: CWE-275
Which versions are affected by CVE-2026-49311?
How do I fix CVE-2026-49311?
No fix has been published for CVE-2026-49311 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-49311 being exploited?
There is no known exploitation of CVE-2026-49311 in the wild and no public exploit code.
Sources
Also known as GHSA-m9gp-rj4w-ffj6.