CVE-2025-55198: helm Use of Uninitialized Resource
Vulnerability summary
CVE-2025-55198 is a medium (CVSS 6.5) Use of Uninitialized Resource vulnerability in helm. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2 · Related 51Timeline
- 13-08-2025PublishedVulnerability first disclosed.
- 14-08-2025Last modifiedVulnerability information updated.
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 metrics
5 scores · 5 sources · 1 version- OSV · WolfiEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · GoEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
25%
Versus all other CVEs
30-day change
0.00 pp
From 0.33% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard200 products
- cerbos< 0.46.0-r2
- cerbos-compat< 0.46.0-r2
- cerbos-fips< 0.46.0-r3
- cerbosctl< 0.46.0-r2
- cerbosctl-compat< 0.46.0-r2
1 vendor · 200 products · Showing 200 of 345. Use Open JSON for the complete list.
References
5 links- github.com/helm/helm/security/advisories/GHSA-f9f8-9pmf-xv68X Refsource CONFIRMAdvisoryWEBThird Party Advisory
- github.com/helm/helmPACKAGE