{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-67349", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-29T13:36:36.277Z", "datePublished": "2026-07-30T14:40:47.996Z", "dateUpdated": "2026-07-31T11:54:10.911Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-31T11:54:10.911Z"}, "title": "OpenCost < 1.121.0 Unauthenticated Helm Values Exposure and Admin Bypass", "descriptions": [{"lang": "en", "value": "OpenCost before 1.121.0 fails to authenticate the GET /helmValues endpoint, exposing base64-decoded HELM_VALUES environment variable containing cloud provider credentials. Additionally, adminAuthMiddleware fails open when ADMIN_TOKEN is unset, allowing unauthenticated attackers to modify GCP service account keys via POST /serviceKey to redirect billing calls."}], "tags": ["x_open-source"], "datePublic": "2026-07-02T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "Missing Authentication for Critical Function", "type": "CWE"}]}], "affected": [{"vendor": "opencost", "product": "opencost", "defaultStatus": "unaffected", "packageURL": "pkg:golang/github.com/opencost/opencost", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "1.121.0"}], "repo": "https://github.com/opencost/opencost"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}}], "references": [{"url": "https://github.com/opencost/opencost/issues/3893", "tags": ["technical-description", "exploit", "issue-tracking"], "name": "Researcher Disclosure"}, {"url": "https://github.com/opencost/opencost/releases/tag/core/v1.121.0", "name": "OpenCost core/v1.121.0 Release Notes", "tags": ["release-notes"]}, {"url": "https://github.com/opencost/opencost/pull/3910", "name": "Pull Request", "tags": ["issue-tracking", "patch"]}, {"url": "https://github.com/opencost/opencost/commit/a49a25bc2e0d6e220a131a4dc58f38ebe6ae851b", "name": "Patch Commit", "tags": ["patch"]}, {"url": "https://www.vulncheck.com/advisories/opencost-unauthenticated-helm-values-exposure-and-admin-bypass", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "George Chen", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.121.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "opencost", "vendor": "opencost"}], "created": "2026-07-30T20:26:28.281857+00:00", "updated": "2026-07-31T20:00:14.755263+00:00", "vendors": ["opencost", "opencost$PRODUCT$opencost"]}