{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-85708", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-04T14:45:10.647Z", "datePublished": "2026-11-06T21:06:25.700Z", "dateUpdated": "2026-11-06T21:06:25.700Z"}, "containers": {"cna": {"title": "Chartbrew: Private chart data disclosure via forgeable CB_SECRET share tokens", "problemTypes": [{"descriptions": [{"cweId": "CWE-347", "lang": "en", "description": "CWE-347: Improper Verification of Cryptographic Signature", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-3chp-cr6f-hp63", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-3chp-cr6f-hp63"}, {"name": "https://github.com/chartbrew/chartbrew/commit/07fff78db39e1c073a0301ac382c565268824e09", "tags": ["x_refsource_MISC"], "url": "https://github.com/chartbrew/chartbrew/commit/07fff78db39e1c073a0301ac382c565268824e09"}, {"name": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3"}], "affected": [{"vendor": "chartbrew", "product": "chartbrew", "versions": [{"version": "< 5.2.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-06T21:06:25.700Z"}, "descriptions": [{"lang": "en", "value": "Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.3, Chart share and embed tokens were signed with CB_SECRET, including known or shipped-default values in stock source and repository Docker Compose installs. The vulnerable surface is chart share-token verification and filter-access routes for private charts. An attacker who knows the deployment's CB_SECRET targets a private chart that has been shared at least once so a share-policy row exists, then forges a Chart-subject token for that chart id. The known signing key permits valid Chart tokens, and the filter-access path accepts sequential integer ids without requiring a legitimate share link; token expiry and revocation are ineffective once the secret is known. The condition requires a known or default secret and an existing share-policy row. A bare container where CB_SECRET is undefined is outside this path, and a unique secret excludes it only while the value remains unknown and unpredictable. An unauthenticated attacker can enumerate integer ids and read arbitrary private chart data, including chartData, without possessing a legitimate share link. This issue is fixed in version 5.2.3."}], "source": {"advisory": "GHSA-3chp-cr6f-hp63", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "chartbrew", "vendor": "chartbrew", "versions": [{"status": "affected", "version": "< 5.2.3"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.3, Chart share and embed tokens were signed with CB_SECRET, including known or shipped-default values in stock source and repository Docker Compose installs. The vulnerable surface is chart share-token verification and filter-access routes for private charts. An attacker who knows the deployment's CB_SECRET targets a private chart that has been shared at least once so a share-policy row exists, then forges a Chart-subject token for that chart id. The known signing key permits valid Chart tokens, and the filter-access path accepts sequential integer ids without requiring a legitimate share link; token expiry and revocation are ineffective once the secret is known. The condition requires a known or default secret and an existing share-policy row. A bare container where CB_SECRET is undefined is outside this path, and a unique secret excludes it only while the value remains unknown and unpredictable. An unauthenticated attacker can enumerate integer ids and read arbitrary private chart data, including chartData, without possessing a legitimate share link. This issue is fixed in version 5.2.3."}], "id": "CVE-2026-85708", "lastModified": "2026-11-06T21:17:11.337", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-11-06T21:17:11.183", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/chartbrew/chartbrew/commit/07fff78db39e1c073a0301ac382c565268824e09"}, {"source": "security-advisories@github.com", "url": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-3chp-cr6f-hp63"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}