Medium severity · published Aug 13, 2025
CVE-2025-55198
Helm May Panic Due To Incorrect YAML Content
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
Helm is a package manager for Charts for Kubernetes. Prior to version 3.18.5, when parsing Chart.yaml and index.yaml files, an improper validation of type error can lead to a panic. This issue has been resolved in Helm 3.18.5. A workaround involves ensuring YAML files are formatted as Helm expects prior to processing them with Helm.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HE
helm · helm
< 3.18.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55198
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55198
Patch
https://github.com/helm/helm/commit/ec5f59e2db56533d042a124f5bae54dd87b558e6
Third Party Advisory
https://github.com/helm/helm/security/advisories/GHSA-f9f8-9pmf-xv68
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