Dashboard / CVE-2026-18709

CVE-2026-18709

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 37/100
Published: 2026-08-11 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: High
PR: Low
UI: None
S: X
AT: Present
VC: None
VI: High
VA: High

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.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
mongodb mongodb 7.0.0 – 7.0.40
mongodb mongodb 9.0.0
mongodb mongodb 9.0.0
mongodb mongodb 9.1.0

References & Advisories (1)

https://jira.mongodb.org/browse/SERVER-130544
Vendor Advisory Issue Tracking

Bug Bounty Relevance

37 / 100
✓ No user interaction

CVSS Score

5.9 / 10.0 v4.0
CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.19%
Raw Score 0.001950
Percentile 9.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00195
2026-10-28
0.00195

Intelligence Sources

nvd ref →

External Links