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CVE-2026-8053

FlatBSON Duplicate Field Index Drift

Published: May 12, 2026Updated: May 18, 2026 Sources: CVE List NVD BDUCWE-787
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.5%
Top 59.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-787

Affected Products

mongodbmongodb
On-premDatabase
Databases / nosql
MongoDBMongoDB Inc.
On-premDatabase
Databases / nosql
MongoDB ServerMongoDB, Inc.
Mixed
Databases / nosql
mongodbcommercialUSDatabases
mongodb inc.commercialUSDatabasesaka mongodb, mongodb server, mongodb ops manager
mongodb, inc.commercialUSDatabasesaka mongodb

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://jira.mongodb.org/browse/SERVER-126021
jira.mongodb.org
https://jira.mongodb.org/browse/SERVER-126021
jira.mongodb.org
https://sploitus.com/exploit?id=6F3CBDD6-D539-546A-BE8F-2A0BD44EF01D
sploitus.com
and 2 more references View all →

Timeline

Published
May 12, 2026
Last Updated
May 18, 2026

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