Indexing Flaws in MongoDB Server Affecting Various Versions
CVE-2026-8843

7.1HIGH

Key Information:

Vendor

Mongodb, Inc.

Status
Mongodb Server
Vendor
CVE Published:
18 May 2026

What is CVE-2026-8843?

A problematic scenario is present in MongoDB Server where creating a '2dsphere_bucket' index on a non-timeseries bucket collection leads to server crashes upon inserting documents that trigger index updates. Additionally, the issue extends to the creation of 'queryable_encrypted_range' indices, further impacting database stability. This affects several versions of MongoDB Server, highlighting the need for timely updates to mitigate the risks associated with these vulnerabilities.

Affected Version(s)

MongoDB Server 7.0 < 7.0.32

MongoDB Server 8.0 < 8.0.21

MongoDB Server 8.2 < 8.2.6

References

https://jira.mongodb.org/browse/SERVER-116327
issue-tracking

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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