{"id":"CVE-2026-56682","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-56682","generatedAt":"2026-10-28T00:57:10.130Z","title":"Prior to 0.5.6, 9Router deployments that allow requests to reach Next.js without the sanitizing custom-server.js wrapper use the client-supplied X-9r-Real-Ip value as the bucket key in getClientIp, checkLock, and recordFail in…","description":"9Router is an AI router & token saver. Prior to 0.5.6, 9Router deployments that allow requests to reach Next.js without the sanitizing custom-server.js wrapper use the client-supplied X-9r-Real-Ip value as the bucket key in getClientIp, checkLock, and recordFail in src/lib/auth/loginLimiter.js for POST /api/auth/login. A remote unauthenticated attacker can rotate the header on every password guess so each request uses a new failed-attempt bucket and the five-attempt progressive lockout never returns HTTP 429. This permits unthrottled password guessing against the dashboard login and can lead to an administrative session if the password is recovered. This issue is fixed in version 0.5.6.","published":"2026-09-22T17:17:24.000Z","lastModified":"2026-09-22T18:17:15.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-307","CWE-807"],"affected":[],"epss":{"score":0.00499,"percentile":0.42489,"date":"2026-10-26","history":[{"date":"2026-09-23","score":0.00499,"percentile":0.41824}]},"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 (0.50%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-22T17:17:24.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-09-22T17:17:24.290Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://github.com/decolua/9router/commit/efd20be8d81ef2e256a7037f3aa78e6b567b5fd3","source":"security-advisories@github.com"},{"url":"https://github.com/decolua/9router/releases/tag/v0.5.6","source":"security-advisories@github.com"},{"url":"https://github.com/decolua/9router/security/advisories/GHSA-32gc-64m7-hj7v","source":"security-advisories@github.com"},{"url":"https://github.com/decolua/9router/security/advisories/GHSA-32gc-64m7-hj7v","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-56682","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."}