What is CVE-2025-55198?

CVE-2025-55198 is a medium-severity vulnerability in Helm, classified under Use of Uninitialized Resource. CVSS score: 6.5/10. Published 2025-08-14.

How severe is CVE-2025-55198?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2025-55198 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Helm

CVE-2025-55198

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…

EPSS: 0.003 (25.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Helm — versions < 3.18.5

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

Public proof-of-concept exploits

redducklabs/redducklabs-runners

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-55198?: CVE-2025-55198 is a medium-severity vulnerability in Helm, classified under Use of Uninitialized Resource. CVSS score: 6.5/10. Published 2025-08-14.
How severe is CVE-2025-55198?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-55198 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.