Dashboard / CVE-2026-18703

CVE-2026-18703

LOW
INFO Priority: 0.00 BB Relevance: 45/100
Published: 2026-08-11 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network No Interaction

CVSS Vector Breakdown

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

Description

An issue in MongoDB Server could allow a party with a valid client certificate and a corresponding user account to authenticate using a certificate-based authentication method, even when an administrator has configured the server to restrict authentication to other mechanisms. This could allow authentication through a method the administrator intended to disable.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
mongodb mongodb 8.2.0 – 8.2.12
mongodb mongodb 9.0.0
mongodb mongodb 9.0.0
mongodb mongodb 9.1.0

References & Advisories (1)

https://jira.mongodb.org/browse/SERVER-127863
Vendor Advisory Issue Tracking

Bug Bounty Relevance

45 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

2.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/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

0.14%
Raw Score 0.001440
Percentile 3.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00144
2026-10-28
0.00144

Intelligence Sources

nvd ref →

External Links