CVE-2026-8053
HIGHMongoDB, MongoDB Server - FlatBSON Duplicate Field Index Drift
Title source: ruleExploitation Summary
EIP tracks 2 public exploits for CVE-2026-8053. PoCs published by fearlessresponsesolution, mgiay.
AI-analyzed exploit summary This repository contains a bash script that scans MongoDB servers for CVE-2026-8053, an out-of-bounds write vulnerability in the time-series bucket catalog. The script checks the MongoDB version against patched versions and does not include exploit code.
Description
An issue in MongoDB Server's time-series collection implementation allows an authenticated user with database write privileges to trigger an out-of-bounds memory write in the mongod process. The issue results from an inconsistency in the internal field-name-to-index mapping within the time-series bucket catalog. Under certain conditions this can result in arbitrary code execution. This issue impacts MongoDB Server v5.0 versions prior to 5.0.33, v6.0 versions prior to 6.0.28, v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
Exploits (2)
This repository contains a bash script that scans MongoDB servers for CVE-2026-8053, an out-of-bounds write vulnerability in the time-series bucket catalog. The script checks the MongoDB version against patched versions and does not include exploit code.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H