{"affected":[{"product":"chartbrew","source":"CNA: GitHub_M","vendor":"chartbrew","versions":[{"status":"affected","version":"< 5.2.3"}]}],"cveId":"CVE-2026-85726","cwes":["CWE-943"],"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, a date-typed MongoDB variable placed inside a quoted query placeholder was inserted as an unescaped string, unlike the safely escaped or coerced string, number, and Boolean branches. The vulnerable surface is mongoDB-backed public, shareable, or embedded charts processed by date-variable substitution. An unauthenticated user supplies a crafted URL filter to a public, shareable, or embedded MongoDB chart whose query places a date-typed variable in a quoted literal. The crafted date value breaks out of the quoted literal and changes query logic; the chart's returned row count becomes a Boolean oracle for character-by-character field extraction. The chart must be externally reachable and use the vulnerable date-in-quoted-placeholder branch. Extraction is read-only and limited to one queried collection per request, and it requires neither an account nor a known field value. The blind oracle can disclose any field in the queried collection, including secrets the chart does not display. This issue is fixed in version 5.2.3.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}],"modifiedAt":1793999298807,"publishedAt":1793999298807,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-mr45-2r9x-cgwf"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/chartbrew/chartbrew/commit/9e30fbd0d4a34033813a22bebb6fa6c9ae784d6b"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3"}],"remediation":[],"revision":"1c23df4462063856a5527fe38311e91910b038d2c3ac46160ed5dc8b4e7fcf3d","sources":[{"modifiedAt":1793999298807,"name":"CNA: GitHub_M","retrievedAt":1794002946392,"url":"https://www.cve.org/CVERecord?id=CVE-2026-85726"}],"ssvc":null,"status":"published","title":"Chartbrew: Blind NoSQL injection via date variable in embedded chart","updatedAt":1794002946392}