{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-9749/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-10T13:32:50.141Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-9749","@id":"https://www.cve.org/CVERecord?id=CVE-2026-9749","description":"This issue can occur when running an aggregation pipeline that uses the internal $exchange stage configured with key-range partitioning and order-preserving delivery. If a single key range produces enough documents to fill its exchange buffer (that is, many results are routed to the same consumer), the server reaches the code path where a full per-consumer buffer is detected but the internal \"high watermark\" for that key range is not updated as intended."},"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":"2026-06-10T13:32:50.141Z"}]}