CVE-2026-108743 Apache Kylin: spark job OS command injection
Attackers can execute arbitrary OS commands via Spark jobs in Apache Kylin, primarily affecting services exposed to the public network.
- 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-2026-108743?
CVE-2026-108743 is a high-severity command injection vulnerability in Apache Kylin, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability 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-78
Which versions are affected by CVE-2026-108743?
How do I fix CVE-2026-108743?
No fix has been published for CVE-2026-108743 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-108743 being exploited?
There is no known exploitation of CVE-2026-108743 in the wild and no public exploit code.
Sources
Also known as GHSA-wmr6-c4jj-gq8r.