{"id":"CVE-2025-55199","aliases":["BIT-helm-2025-55199","GHSA-9h84-qmv7-982p","GO-2025-3887"],"url":"https://o3.security/vulnerability/CVE-2025-55199","summary":"Helm Charts with Specific JSON Schema Values Can Cause Memory Exhaustion","details":"A Helm contributor discovered that it was 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.\n\n### Impact\nA malicious chart can point `$ref` in _values.schema.json_ to a device (e.g. `/dev/*`) or other problem file which could cause Helm to use all available memory and have an out of memory (OOM) termination.\n\n### Patches\nThis issue has been resolved in Helm v3.18.5.\n\n### Workarounds\nMake sure that all Helm charts that are being loaded into Helm doesn't have any reference of `$ref` pointing to `/dev/zero`.\n\n### References\nHelm's security policy is spelled out in detail in our [SECURITY](https://github.com/helm/community/blob/master/SECURITY.md) document.\n\n### Credits\nDisclosed by Jakub Ciolek at AlphaSense.","published":"2025-08-13T23:23:43.304Z","modified":"2026-08-12T03:51:36.165912709Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"epss":{"score":0.00334,"percentile":0.26692,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"helm.sh/helm/v3","fixedVersion":"3.18.5"}],"fix":{"url":"https://github.com/helm/helm/commit/b78692c18f0fb38fe5ba4571a674de067a4c53a5","label":"helm/helm@b78692c"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55199.json"},{"type":"ADVISORY","url":"https://github.com/helm/helm/security/advisories/GHSA-9h84-qmv7-982p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55199"},{"type":"FIX","url":"https://github.com/helm/helm/commit/b78692c18f0fb38fe5ba4571a674de067a4c53a5"},{"type":"PACKAGE","url":"https://github.com/helm/helm"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:36.165912709Z"}}