{"id":"CVE-2026-77520","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-77520","generatedAt":"2026-10-28T03:32:05.542Z","title":"In 2.10.2-lts and earlier, a normal user in the same workspace can obtain another user's application_id from the homepage application question-ranking endpoint when the published victim application has ranking activity in the selected date range and the…","description":"MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, a normal user in the same workspace can obtain another user's application_id from the homepage application question-ranking endpoint when the published victim application has ranking activity in the selected date range and the attacker knows or guesses its name, even though direct application detail and debug-open routes deny access. An attacker who can create and publish a workflow application can place the disclosed identifier in an attacker-owned workflow application-node, trigger that workflow, receive output generated by the victim application, and create durable application_chat and application_chat_record rows under the victim application because save and runtime paths do not verify permission to use the referenced application. No fixed version is available as of this review.","published":"2026-09-21T21:17:11.000Z","lastModified":"2026-09-22T16:17:55.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},"cwe":["CWE-862"],"affected":[],"epss":{"score":0.0023,"percentile":0.13775,"date":"2026-10-27","history":[{"date":"2026-09-22","score":0.00171,"percentile":0.06849}]},"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 (0.23%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-21T21:17:11.000Z","detail":{"score":"5.4","severity":"MEDIUM","publishedAt":"2026-09-21T21:17:10.787Z"},"summary":"New CVE, medium severity (CVSS 5.4)."}],"references":[{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-4w4r-h4x8-mg7h","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-77520","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."}