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CVE-2026-9746

Server crashes in case of the use of exchange

MEDIUM
6.5
CVSS Score
Published: June 9, 2026 at 10:02 PM UTC
Updated: July 23, 2026 at 07:32 PM UTC
1 product affected across 1 vendorMongoDB

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

When using $changestreams and $_requestReshardingResumeToken with the exchange option the server hits an invariant which causes the server to crash. There are no special privileges needed. The user must be logged in to issue the statement.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MongoDB· MongoDB
95%
7.0.0 ≤ v < 7.0.358.0.0 ≤ v < 8.0.248.2.0 ≤ v < 8.2.108.3.0 ≤ v < 8.3.37.0.08.0.08.2.08.3.0
Affected range stops below 7.0.35, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.0.24, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.2.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.3.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

PatchVendor Advisory
Source: cverecord
https://jira.mongodb.org/browse/SERVER-124190

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMmongodb
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-617

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