CVE-2025-55199

Helm Charts with Specific JSON Schema Values Can Cause Memory Exhaustion

Description

Helm is a package manager for Charts for Kubernetes. Prior to version 3.18.5, it is possible to craft a JSON Schema file in a manner which could cause Helm to use all available memory and have an out of memory (OOM) termination. This issue has been resolved in Helm 3.18.5. A workaround involves ensuring all Helm charts that are being loaded into Helm do not have any reference of $ref pointing to /dev/zero.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Third-Party Advisory github.com
Affected: helm helm
Published at:
Updated at:

References

Link Tags
https://github.com/helm/helm/security/advisories/GHSA-9h84-qmv7-982p third party advisory
https://github.com/helm/helm/commit/b78692c18f0fb38fe5ba4571a674de067a4c53a5 patch

Frequently Asked Questions

What is the severity of CVE-2025-55199?
CVE-2025-55199 has been scored as a medium severity vulnerability.
How to fix CVE-2025-55199?
To fix CVE-2025-55199, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-55199 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-55199 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-55199?
CVE-2025-55199 affects helm helm.
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