{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-9740/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-10T18:16:38.879Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-9740","@id":"https://www.cve.org/CVERecord?id=CVE-2026-9740","description":"A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual recursion between validation functions, where each re-entry resets internal depth tracking."},"products":[{"@id":"cpe:2.3:a:mongodb:mongodb_server:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:mongodb:mongodb_server:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"Update to a fixed version: 7.0.35, 8.0.24, 8.2.10, 8.3.3.","timestamp":"2026-06-10T18:16:38.879Z"}]}