{"id":"CVE-2026-61743","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-61743","generatedAt":"2026-10-28T03:31:08.703Z","title":"An authenticated user who can create or test API connections and controls the target DNS name can return a public address during validation and a private address during the request, bypassing the protections implemented by…","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 5.2.2, Chartbrew's server/modules/safeRequest.js calls validateOutboundUrl() to resolve and validate a target hostname, but request-promise performs a separate DNS resolution for the actual connection. An authenticated user who can create or test API connections and controls the target DNS name can return a public address during validation and a private address during the request, bypassing the protections implemented by server/modules/outboundTargetPolicy.js. This DNS rebinding condition can expose internal services, localhost resources, or cloud metadata endpoints. This issue is fixed in version 5.2.2.","published":"2026-09-21T22:16:58.000Z","lastModified":"2026-09-24T21:25:27.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N"},"cwe":["CWE-350"],"affected":[],"epss":{"score":0.00405,"percentile":0.34564,"date":"2026-10-26","history":[{"date":"2026-09-22","score":0.00265,"percentile":0.18716}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-21T22:16:58.000Z","detail":{"score":"6.3","severity":"MEDIUM","publishedAt":"2026-09-21T22:16:57.823Z"},"summary":"New CVE, medium severity (CVSS 6.3)."}],"references":[{"url":"https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3","source":"security-advisories@github.com"},{"url":"https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2","source":"security-advisories@github.com"},{"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f","source":"security-advisories@github.com"},{"url":"https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-61743","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}