{"id":"CVE-2022-23526","aliases":["BIT-helm-2022-23526","GHSA-67fx-wx78-jx33","GO-2022-1166"],"url":"https://o3.security/vulnerability/CVE-2022-23526","summary":"Helm contains Denial of service through schema file","details":"Fuzz testing, by Ada Logics and sponsored by the CNCF, identified input to functions in the `_chartutil_` package that can cause a segmentation violation. Applications that use functions from the `_chartutil_` package in the Helm SDK can have a Denial of Service attack when they use this package and it panics.\n\n### Impact\n\nThe `_chartutil_` package contains a parser that loads a JSON Schema validation file. For example, the Helm client when rendering a chart will validate its values with the schema file. The `_chartutil_` package parses the schema file and loads it into structures Go can work with. Some schema files can cause array data structures to be created causing a memory violation.\n\nApplications that use the `_chartutil_` package in the Helm SDK to parse a schema file can suffer a Denial of Service when that input causes a panic that cannot be recovered from.\n\nThe Helm Client will panic with a schema file that causes a memory violation panic. Helm is not a long running service so the panic will not affect future uses of the Helm client.\n\n### Patches\n\nThis issue has been resolved in 3.10.3. \n\n### Workarounds\n\nSDK users can validate schema files that are correctly formatted before passing them to the `_chartutil_` functions.\n\n### For more information\n\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\n\nDisclosed by Ada Logics in a fuzzing audit sponsored by CNCF.","published":"2022-12-15T00:43:40.383Z","modified":"2026-10-28T02:30:41.080380446Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.00818,"percentile":0.54855,"asOf":"2026-09-08"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"helm.sh/helm/v3","fixedVersion":"3.10.3"}],"fix":{"url":"https://github.com/helm/helm/commit/bafafa8bb1b571b61d7a9528da8d40c307dade3d","label":"helm/helm@bafafa8"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23526.json"},{"type":"ADVISORY","url":"https://github.com/helm/helm/security/advisories/GHSA-67fx-wx78-jx33"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23526"},{"type":"FIX","url":"https://github.com/helm/helm/commit/bafafa8bb1b571b61d7a9528da8d40c307dade3d"},{"type":"PACKAGE","url":"https://github.com/helm/helm"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2022-1166"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:41.080380446Z"}}