CVE-2026-18690

HIGH
MEDIUM Priority: 0.03 BB Relevance: 64/100
Published: 2026-08-11 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Integ. Impact

CVSS Vector Breakdown

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

Description

An issue in MongoDB Server could allow an authenticated user with a limited database-scoped role to perform an action against protected system collections that their assigned privileges should not permit. This could result in critical system collections being dropped and recreated without proper authorization.

Weakness Classification (1)

Affected Software (7)

VendorProductVersion
mongodb mongodb 7.0.0 – 7.0.40
mongodb mongodb 8.0.0 – 8.0.29
mongodb mongodb 8.2.0 – 8.2.12
mongodb mongodb 8.3.0 – 8.3.8
mongodb mongodb 9.0.0
mongodb mongodb 9.0.0
mongodb mongodb 9.1.0

References & Advisories (1)

https://jira.mongodb.org/browse/SERVER-130481
Vendor Advisory Issue Tracking

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.2 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/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

0.41%
Raw Score 0.004060
Percentile 34.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00406
2026-10-28
0.00406

Intelligence Sources

nvd ref →