CVE-2026-108709 Apache Kylin: Unauthenticated Metadata Broadcast (inside in-house network)
Unauthenticated attackers on the internal network can access metadata in Apache Kylin, primarily affecting services exposed to the public network.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108709?
CVE-2026-108709 is a critical authentication bypass vulnerability in Apache Kylin, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Authentication bypass within in-house network in Apache Kylin. Impact most to the kylin services that are directly exposed to public network, which is not common. In-house kylin deployments are mostly not impacted.
This issue affects Apache Kylin: from 4.0.4 through 5.0.4.
Users are recommended to upgrade to version 5.0.5, which fixes the issue.
Weakness: CWE-287
Which versions are affected by CVE-2026-108709?
How do I fix CVE-2026-108709?
No fix has been published for CVE-2026-108709 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-108709 being exploited?
There is no known exploitation of CVE-2026-108709 in the wild and no public exploit code.
Sources
Also known as GHSA-9qj3-8pcf-3r59.