Vulnerability · Published Apr 9, 2025 · Assigned by GitHub_M

CVE-2025-32386Helm Allows A Specially Crafted Chart Archive To Cause Out Of Memory Termination

Medium 6.5

In plain English

A medium-severity resource allocation without limits in helm from helm. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.5%top 59.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Helm is a tool for managing Charts. A chart archive file can be crafted in a manner where it expands to be significantly larger uncompressed than compressed (e.g., >800x difference). When Helm loads this specially crafted chart, memory can be exhausted causing the application to terminate. This issue has been resolved in Helm v3.17.3.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	helm.sh/helm/v3	3.17.3	GHSA-4hfp-h4cw-hj8p
Go	helm.sh/helm/v3	3.17.3	GO-2025-3601
Ubuntu:22.04:LTS	helm	no fix listed	UBUNTU-CVE-2025-32386
Ubuntu:24.04:LTS	helm	no fix listed	UBUNTU-CVE-2025-32386
Ubuntu:25.10	helm	no fix listed	UBUNTU-CVE-2025-32386
Ubuntu:26.04:LTS	helm	no fix listed	UBUNTU-CVE-2025-32386
Ubuntu:26.10	helm	no fix listed	UBUNTU-CVE-2025-32386

Affected products (as reported)

Vendor	Product	Versions
helm	helm	< 3.17.3

Weakness: CWE-789, CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

https://github.com/helm/helm/security/advisories/GHSA-4hfp-h4cw-hj8p x_refsource_CONFIRM
https://github.com/helm/helm/commit/d8ca55fc669645c10c0681d49723f4bb8c0b1ce7 x_refsource_MISC