{"id":"CVE-2026-85736","published":"2026-11-06T21:17:11.757","lastModified":"2026-11-09T23:17:26.467","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.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cwes":["CWE-73"],"vendors":[],"products":[],"references":[{"url":"https://github.com/chartbrew/chartbrew/commit/aa931cc868eff8c4343ae2263539fa2d0d4a0943","tags":[]},{"url":"https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3","tags":[]},{"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-p5h6-f969-jpfv","tags":[]}],"exploitRefs":[{"url":"https://github.com/chartbrew/chartbrew/commit/aa931cc868eff8c4343ae2263539fa2d0d4a0943","tags":[]},{"url":"https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3","tags":[]},{"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-p5h6-f969-jpfv","tags":[]}],"hasPoc":true,"ai":null}