{"api_version":"1","generated_at":"2026-11-13T11:30:01+00:00","cve":"CVE-2026-85736","urls":{"html":"https://cve.report/CVE-2026-85736","api":"https://cve.report/api/cve/CVE-2026-85736.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-85736","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-85736"},"summary":{"title":"Chartbrew: Arbitrary file deletion as root via data connection SSL/SSH paths","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, connection creation or update stored attacker-chosen absolute SSL and SSH file paths, and later connection cleanup passed those stored paths to fs.unlink without a path restriction. The vulnerable surface is data-connection certificate and SSH-key cleanup when a connection is removed. A user with createOwn and deleteOwn permissions on their own team stores a target path in a connection and then deletes the connection to trigger cleanup; default self-signup grants teamOwner these permissions. The cleanup routine treats the stored SSL or SSH path as a managed certificate path and unlinks the referenced file; duplicateConnection provides a second advisory-identified trigger. The attacker must be able to create or update and then delete a connection on their own team. The default container runs Chartbrew as uid 0, while deployments with a less-privileged process are limited by that process's deletion permissions. The attacker can delete files such as /code/.env or application source, causing integrity loss and service disruption. This issue is fixed in version 5.2.3.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-11-06 21:17:11","updated_at":"2026-11-06 21:17:11"},"problem_types":["CWE-73","CWE-73 CWE-73: External Control of File Name or Path"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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/aa931cc868eff8c4343ae2263539fa2d0d4a0943","name":"https://github.com/chartbrew/chartbrew/commit/aa931cc868eff8c4343ae2263539fa2d0d4a0943","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-p5h6-f969-jpfv","name":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-p5h6-f969-jpfv","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-85736","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85736","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":"85736","cve":"CVE-2026-85736","epss":"0.002020000","percentile":"0.101860000","score_date":"2026-11-08","updated_at":"2026-11-09 00:01:54"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"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. Prior to 5.2.3, connection creation or update stored attacker-chosen absolute SSL and SSH file paths, and later connection cleanup passed those stored paths to fs.unlink without a path restriction. The vulnerable surface is data-connection certificate and SSH-key cleanup when a connection is removed. A user with createOwn and deleteOwn permissions on their own team stores a target path in a connection and then deletes the connection to trigger cleanup; default self-signup grants teamOwner these permissions. The cleanup routine treats the stored SSL or SSH path as a managed certificate path and unlinks the referenced file; duplicateConnection provides a second advisory-identified trigger. The attacker must be able to create or update and then delete a connection on their own team. The default container runs Chartbrew as uid 0, while deployments with a less-privileged process are limited by that process's deletion permissions. The attacker can delete files such as /code/.env or application source, causing integrity loss and service disruption. This issue is fixed in version 5.2.3."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-73","description":"CWE-73: External Control of File Name or Path","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-06T21:09:02.969Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-p5h6-f969-jpfv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-p5h6-f969-jpfv"},{"name":"https://github.com/chartbrew/chartbrew/commit/aa931cc868eff8c4343ae2263539fa2d0d4a0943","tags":["x_refsource_MISC"],"url":"https://github.com/chartbrew/chartbrew/commit/aa931cc868eff8c4343ae2263539fa2d0d4a0943"},{"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"}],"source":{"advisory":"GHSA-p5h6-f969-jpfv","discovery":"UNKNOWN"},"title":"Chartbrew: Arbitrary file deletion as root via data connection SSL/SSH paths"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-85736","datePublished":"2026-11-06T21:09:02.969Z","dateReserved":"2026-09-04T14:50:16.719Z","dateUpdated":"2026-11-06T21:09:02.969Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-06 21:17:11","lastModifiedDate":"2026-11-06 21:17:11","problem_types":["CWE-73","CWE-73 CWE-73: External Control of File Name or Path"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"85736","Ordinal":"1","Title":"Chartbrew: Arbitrary file deletion as root via data connection S","CVE":"CVE-2026-85736","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"85736","Ordinal":"1","NoteData":"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, connection creation or update stored attacker-chosen absolute SSL and SSH file paths, and later connection cleanup passed those stored paths to fs.unlink without a path restriction. The vulnerable surface is data-connection certificate and SSH-key cleanup when a connection is removed. A user with createOwn and deleteOwn permissions on their own team stores a target path in a connection and then deletes the connection to trigger cleanup; default self-signup grants teamOwner these permissions. The cleanup routine treats the stored SSL or SSH path as a managed certificate path and unlinks the referenced file; duplicateConnection provides a second advisory-identified trigger. The attacker must be able to create or update and then delete a connection on their own team. The default container runs Chartbrew as uid 0, while deployments with a less-privileged process are limited by that process's deletion permissions. The attacker can delete files such as /code/.env or application source, causing integrity loss and service disruption. This issue is fixed in version 5.2.3.","Type":"Description","Title":"Chartbrew: Arbitrary file deletion as root via data connection S"}]}}}