{"id":"CVE-2026-103965","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-103965","generatedAt":"2026-10-28T01:12:00.004Z","title":"An issue in MongoDB Server's aggregation framework can cause certain constant values to be handled incorrectly during internal query rewriting.","description":"An issue in MongoDB Server's aggregation framework can cause certain constant values to be handled incorrectly during internal query rewriting. Under certain conditions, an authenticated user with read access may receive field values in aggregation output that the query did not intend to return.","published":"2026-10-13T16:17:11.000Z","lastModified":"2026-10-15T20:38:04.000Z","status":"Awaiting Analysis","sourceIdentifier":"cna@mongodb.com","cvss":{"version":"4.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-94"],"affected":[],"epss":{"score":0.0015,"percentile":0.04143,"date":"2026-10-26","history":[{"date":"2026-10-14","score":0.0015,"percentile":0.03767}]},"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 (0.15%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-13T16:17:11.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-13T16:17:10.790Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://jira.mongodb.org/browse/SERVER-134618","source":"cna@mongodb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-103965","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."}