{"id":"CVE-2026-63308","aliases":[],"cve":{"records":[{"id":"CVE-2026-63308","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-07-16T12:13:18.733Z","published":"2026-07-17T16:14:15.472Z","modified":"2026-10-29T21:16:18.580Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-29T21:16:18.580Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-07-17T17:25:42.234Z"}],"references":[{"url":"https://github.com/helm/helm/issues/32279","tags":["technical-description","exploit"],"source":"VulnCheck"},{"url":"https://github.com/helm/helm/pull/32290","tags":["issue-tracking"],"source":"VulnCheck"},{"url":"https://github.com/helm/helm/commit/ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017","tags":["patch"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/helm-files-lines-denial-of-service-via-empty-chart-files","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-129","description":"Improper Validation of Array Index","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*","versionEndIncluding":"4.2.3"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-07-17T17:25:36.932375Z","decisions":[{"name":"Exploitation","value":"poc"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Helm Files.Lines Denial of Service via Empty Chart Files","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"Helm through 4.2.3, fixed in commit ba6c9a2, contains a denial of service vulnerability in the Files.Lines template helper in pkg/engine/files.go that allows attackers to trigger an index out of range panic by including zero-length byte slices in chart files. Attackers can include empty files in Helm charts to cause deterministic render failures across template, install, upgrade, lint, and SDK Engine.Render operations.","score":5.3,"severity":"medium","published":"2026-07-17T16:14:15.472Z","modified":"2026-10-29T21:16:18.580Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"helm","name":"helm","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.2.3","versionType":"semver"},{"version":"ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017","status":"unaffected","versionType":"git"}],"defaultStatus":"unaffected","packageURL":"pkg:golang/helm.sh/helm/v4","packageIdentity":{"ecosystem":"Go","name":"helm.sh/helm/v4"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-63308"}],"remediation":[],"references":["https://github.com/helm/helm/issues/32279","https://github.com/helm/helm/pull/32290","https://github.com/helm/helm/commit/ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017","https://www.vulncheck.com/advisories/helm-files-lines-denial-of-service-via-empty-chart-files"],"sources":[{"name":"CVE","id":"CVE-2026-63308","modified":"2026-10-29T21:16:18.580Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-63308"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":5.3},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","score":4.3}],"sourceAffected":[],"observedAt":"2026-10-29T21:29:47.417Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T09:10:30.844Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T23:10:43.919Z","attemptedAt":"2026-10-29T23:10:43.919Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-29T23:10:42.401Z","attemptedAt":"2026-10-29T23:10:42.401Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T23:10:42.711Z","attemptedAt":"2026-10-29T23:10:42.711Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-29T23:10:43.339Z","attemptedAt":"2026-10-29T23:10:43.339Z"}],"evidence":[{"source":"GitHub Advisory Database","id":"GHSA-5gjx-96wq-c8r2","url":"https://github.com/advisories/GHSA-5gjx-96wq-c8r2","modified":"2026-07-17T18:31:34Z","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","checkedAt":"2026-10-29T23:10:42.401Z"},{"source":"ENISA EUVD","id":"EUVD-2026-45213","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-45213","modified":"Oct 29, 2026, 9:16:18 PM","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","checkedAt":"2026-10-29T23:10:42.711Z"},{"source":"FIRST EPSS","id":"CVE-2026-63308","url":"https://www.first.org/epss/","probability":0.00486,"percentile":0.41791,"date":"2026-10-29","checkedAt":"2026-10-29T23:10:43.339Z"},{"source":"NVD","id":"CVE-2026-63308","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63308","modified":"2026-10-29T21:17:29.290","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-29T23:10:43.919Z"},{"source":"NVD","id":"CVE-2026-63308","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63308","modified":"2026-10-29T21:17:29.290","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","checkedAt":"2026-10-29T23:10:43.919Z"},{"source":"NVD","id":"CVE-2026-63308","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63308","modified":"2026-10-29T21:17:29.290","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","checkedAt":"2026-10-29T23:10:43.919Z"}],"aiSummary":{"text":"Helm through 4.2.3 contains a denial of service vulnerability that allows attackers to trigger a panic by including empty files in chart files, causing render failures. Attackers need access to modify chart files. The weakness is due to improper validation of array indices.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:33:50.360Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-63308"}]}}