CVE-2025-55199 Details
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.
A denial-of-service vulnerability has been identified in Helm, a package manager for Kubernetes charts, in versions prior to 3.18.5. The issue arises from the ability to create a JSON Schema file that can exhaust all available memory, leading to an out-of-memory termination. This vulnerability can be exploited by referencing certain files in a way that causes excessive memory usage.
Users can upgrade to Helm version 3.18.5 or later to address this vulnerability. Additionally, ensure that no Helm charts being loaded contain references in the JSON Schema that point to '/dev/zero'.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 14, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/helm/helm/commit/b78692c18f0fb38fe5ba4571a674de067a4c53a5 | [email protected] | Patch |
| https://github.com/helm/helm/security/advisories/GHSA-9h84-qmv7-982p | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| helm helm | < 3.18.5 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Aug 21, 2025 | Initial Analysis | [email protected] |
| Aug 14, 2025 | New CVE Received | [email protected] |