CVE-2026-108762 Apache Kylin: delete metadata backup path-confinement bypass
Attackers can bypass path restrictions to delete arbitrary metadata backup files in Apache Kylin, primarily affecting publicly exposed services.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108762?
CVE-2026-108762 is a path traversal vulnerability in Apache Kylin, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Path-confinement bypass during metadata backup deletion 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 4.0.0 through 5.0.4.
Users are recommended to upgrade to version 5.0.5, which fixes the issue.
Which versions are affected by CVE-2026-108762?
How do I fix CVE-2026-108762?
No fix has been published for CVE-2026-108762 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-2026-108762 being exploited?
There is no known exploitation of CVE-2026-108762 in the wild and no public exploit code.
Sources
Also known as GHSA-f4w3-hpxf-cwrr.