Out-of-Bounds Memory Write Vulnerability in MongoDB Server
CVE-2026-8053

8.7HIGH

Key Information:

Vendor

Mongodb, Inc.

Status
Mongodb Server
Vendor
CVE Published:
12 May 2026

What is CVE-2026-8053?

An issue in the MongoDB Server's implementation of time-series collections allows a user with write privileges to perform an out-of-bounds memory write within the mongod process. This vulnerability arises from inconsistencies in the internal mapping of field names to indices in the time-series bucket catalog. Under specific conditions, it may lead to arbitrary code execution, posing serious security threats for users of affected MongoDB Server versions.

Affected Version(s)

MongoDB Server 5.0 < 5.0.33

MongoDB Server 6.0 < 6.0.28

MongoDB Server 7.0 < 7.0.34

References

https://jira.mongodb.org/browse/SERVER-126021
issue-tracking

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.