What is CVE-2025-55199?

CVE-2025-55199 is a medium-severity vulnerability in Helm, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2025-08-14.

How severe is CVE-2025-55199?

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

Is CVE-2025-55199 known to be exploited?

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

Resource exhaustion in Helm

CVE-2025-55199

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…

EPSS: 0.003 (25.7th 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-770 — Allocation of Resources Without Limits or Throttling

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-2025-55199?: CVE-2025-55199 is a medium-severity vulnerability in Helm, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2025-08-14.
How severe is CVE-2025-55199?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-55199 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.