CVE-2026-18709EPSS p8.3%

CVE-2026-18709CVE-2026-18709

mongodb / mongodb

Description

An issue in MongoDB Server could allow an authenticated user with direct network access to a shard to improperly commit or abort an in-progress prepared transaction, bypassing the intended transaction coordination process. This could result in cross-shard data inconsistency, cluster clock corruption, and violation of transaction atomicity guarantees.

Scoring

CVSS 6.4 ()
VectorCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS0.19% probability of exploitation · percentile 8.3% · 2026-10-05T12:00:23Z
Last modified2026-09-16
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.