{"id":"CVE-2026-85736","title":"Chartbrew: Arbitrary file deletion as root via data connection SSL/SSH paths","summary":"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 late…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cvssSource":"cna","cwe":["CWE-73"],"vendor":"chartbrew","product":"chartbrew","affected":["chartbrew < 5.2.3"],"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T21:09:02.969Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-85736","references":[{"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-p5h6-f969-jpfv","label":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-p5h6-f969-jpfv"},{"url":"https://github.com/chartbrew/chartbrew/commit/aa931cc868eff8c4343ae2263539fa2d0d4a0943","label":"https://github.com/chartbrew/chartbrew/commit/aa931cc868eff8c4343ae2263539fa2d0d4a0943"},{"url":"https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3","label":"https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T22:04:56.325Z","epss":0.00202,"epssPercentile":0.10191,"slug":"CVE-2026-85736","body":"## Overview\n\nChartbrew 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.\n\n## Affected\n\n- `chartbrew < 5.2.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}