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.
INFO
Published Date :
Aug. 14, 2025, 12:15 a.m.
Last Modified :
Aug. 21, 2025, 9:25 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Upgrade Helm to version 3.18.5 or later.
- Ensure chart JSON Schemas do not reference /dev/zero.
Public PoC/Exploit Available at Github
CVE-2025-55199 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-55199.
| URL | Resource |
|---|---|
| https://github.com/helm/helm/commit/b78692c18f0fb38fe5ba4571a674de067a4c53a5 | Patch |
| https://github.com/helm/helm/security/advisories/GHSA-9h84-qmv7-982p | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-55199 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-55199
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
The Red Duck Labs GitHub Runners
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-55199 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-55199 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 21, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:* versions up to (excluding) 3.18.5 Added Reference Type GitHub, Inc.: https://github.com/helm/helm/commit/b78692c18f0fb38fe5ba4571a674de067a4c53a5 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/helm/helm/security/advisories/GHSA-9h84-qmv7-982p Types: Third Party Advisory -
New CVE Received by [email protected]
Aug. 14, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CWE CWE-770 Added Reference https://github.com/helm/helm/commit/b78692c18f0fb38fe5ba4571a674de067a4c53a5 Added Reference https://github.com/helm/helm/security/advisories/GHSA-9h84-qmv7-982p