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Vulnerability Details :

CVE-2026-4358

Summary
Assigner-mongodb
Assigner Org ID-a39b4221-9bd0-4244-95fc-f3e2e07f1deb
Published At-17 Mar, 2026 | 19:00
Updated At-17 Mar, 2026 | 20:08
Rejected At-
Credits

Memory safety issues in slot-based execution hash table spill

A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mongodb
Assigner Org ID:a39b4221-9bd0-4244-95fc-f3e2e07f1deb
Published At:17 Mar, 2026 | 19:00
Updated At:17 Mar, 2026 | 20:08
Rejected At:
▼CVE Numbering Authority (CNA)
Memory safety issues in slot-based execution hash table spill

A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.

Affected Products
Vendor
MongoDB, Inc.MongoDB Inc
Product
MongoDB Server
Default Status
unaffected
Versions
Affected
  • From 8.2 before 8.2.6 (custom)
  • From 8.0 before 8.0.20 (custom)
  • From 7.0 before 7.0.31 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-415CWE-415 Double free
Type: CWE
CWE ID: CWE-415
Description: CWE-415 Double free
Metrics
VersionBase scoreBase severityVector
4.06.1MEDIUM
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
3.16.4MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Version: 4.0
Base score: 6.1
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Version: 3.1
Base score: 6.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://jira.mongodb.org/browse/SERVER-118849
N/A
Hyperlink: https://jira.mongodb.org/browse/SERVER-118849
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cna@mongodb.com
Published At:17 Mar, 2026 | 20:16
Updated At:02 Apr, 2026 | 12:16

A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.06.1MEDIUM
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/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
Secondary3.16.4MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 6.1
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/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
Type: Secondary
Version: 3.1
Base score: 6.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CPE Matches
MongoDB, Inc.
mongodb
>>mongodb>>Versions from 7.0.0(inclusive) to 7.0.31(exclusive)
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
MongoDB, Inc.
mongodb
>>mongodb>>Versions from 8.0.0(inclusive) to 8.0.20(exclusive)
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
MongoDB, Inc.
mongodb
>>mongodb>>Versions from 8.2.0(inclusive) to 8.2.6(exclusive)
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
Weaknesses
CWE IDTypeSource
CWE-415Secondarycna@mongodb.com
CWE ID: CWE-415
Type: Secondary
Source: cna@mongodb.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://jira.mongodb.org/browse/SERVER-118849cna@mongodb.com
Exploit
Vendor Advisory
Hyperlink: https://jira.mongodb.org/browse/SERVER-118849
Source: cna@mongodb.com
Resource:
Exploit
Vendor Advisory

Change History

0
Information is not available yet

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