CVE-2022-37439 Malformed ZIP file crashes Universal Forwarders and Splunk Enterprise through file monitoring input
Attackers can crash Splunk Enterprise and Universal Forwarders by indexing a malformed ZIP file, requiring manual intervention to restore service.
- 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-2022-37439?
CVE-2022-37439 is a medium-severity denial of service vulnerability in Splunk Splunk, published on 16 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In Splunk Enterprise and Universal Forwarder versions in the following table, indexing a specially crafted ZIP file using the file monitoring input can result in a crash of the application. Attempts to restart the application would result in a crash and would require manually removing the malformed file.
Weakness: CWE-409
Which versions are affected by CVE-2022-37439?
It affects 2 products.
Products include Splunk Splunk, Splunk Universal Forwarder.
How do I fix CVE-2022-37439?
No fix has been published for CVE-2022-37439 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-37439 being exploited?
There is no known exploitation of CVE-2022-37439 in the wild and no public exploit code.
Other vulnerabilities in Splunk Splunk
- CVE-2026-20253 Splunk Enterprise Missing Authentication for Critical Function
- CVE-2026-76268 Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
- CVE-2026-76284 Improper Neutralization in Splunk Enterprise
- CVE-2026-76285 Improper Adherence to Coding Standards in Splunk Enterprise
- CVE-2017-17067 Auth bypass in n/a
Sources
Also known as GHSA-mg48-gp9q-6j63.