{"api_version":"1","generated_at":"2026-11-13T11:30:02+00:00","cve":"CVE-2026-85712","urls":{"html":"https://cve.report/CVE-2026-85712","api":"https://cve.report/api/cve/CVE-2026-85712.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-85712","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-85712"},"summary":{"title":"Chartbrew: Cross-tenant project takeover via body.team_id in /project routes","description":"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, the shared project permission check trusted a caller-controlled team_id and let the teamOwner/teamAdmin branch continue without confirming that the target project belonged to that team. The vulnerable surface is project routes and related authorization checks that accepted user-controlled project identifiers. An authenticated user who is an owner or admin of their own team submits a victim project id together with the attacker's own team_id in the request body; default self-signup grants the required role on the user's own team. Authorization is evaluated against the attacker-selected team instead of the target project's team, and the update path mass-assigns the request body without a project field allow-list. The attacker needs a valid Chartbrew account, an owner or admin role on their own team, and a victim project identifier; requests without the body team_id trick are rejected. The attacker can re-parent the victim project into their own team, gain full read and write access, expose it publicly, remove password protection, and cause the victim to lose it; the shared delete route also permits cross-tenant deletion. This issue is fixed in version 5.2.3.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-11-06 21:17:11","updated_at":"2026-11-09 14:17:22"},"problem_types":["CWE-639","CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3","name":"https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/chartbrew/chartbrew/commit/9db1e57c95014256ef0a7a8a4d60af6e7ade42a5","name":"https://github.com/chartbrew/chartbrew/commit/9db1e57c95014256ef0a7a8a4d60af6e7ade42a5","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-6gv3-8wxh-6vfq","name":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-6gv3-8wxh-6vfq","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-85712","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85712","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"chartbrew","product":"chartbrew","version":"affected < 5.2.3","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"85712","cve":"CVE-2026-85712","epss":"0.003690000","percentile":"0.310330000","score_date":"2026-11-09","updated_at":"2026-11-10 00:05:34"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-85712","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-11-09T13:27:06.856193Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-09T13:27:30.645Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-6gv3-8wxh-6vfq"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"chartbrew","vendor":"chartbrew","versions":[{"status":"affected","version":"< 5.2.3"}]}],"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. 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The attacker can re-parent the victim project into their own team, gain full read and write access, expose it publicly, remove password protection, and cause the victim to lose it; the shared delete route also permits cross-tenant deletion. 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Prior to 5.2.3, the shared project permission check trusted a caller-controlled team_id and let the teamOwner/teamAdmin branch continue without confirming that the target project belonged to that team. The vulnerable surface is project routes and related authorization checks that accepted user-controlled project identifiers. An authenticated user who is an owner or admin of their own team submits a victim project id together with the attacker's own team_id in the request body; default self-signup grants the required role on the user's own team. Authorization is evaluated against the attacker-selected team instead of the target project's team, and the update path mass-assigns the request body without a project field allow-list. The attacker needs a valid Chartbrew account, an owner or admin role on their own team, and a victim project identifier; requests without the body team_id trick are rejected. 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