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CVE-2026-9753

Server crash via malformed binary diff passed to $_internalApplyOplogUpdate.

Published: Jun 9, 2026Updated: Jun 9, 2026 Sources: CVE List NVD
NVD MITRE
8.1CVSS
HIGH

The $_internalApplyOplogUpdate aggregation pipeline stage can be used to execute a document diff containing a malformed binary diff to return memory out-of-bounds or crash the server. $_internalApplyOplogUpdate can be executed by any authenticated user with access to the aggregate command.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA: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:NIntegrity
None
A:HAvailability
High

Weaknesses

CWE-1287

Affected Products

MongoDB Server
MongoDB

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://jira.mongodb.org/browse/SERVER-124959
jira.mongodb.org

Timeline

Published
Jun 9, 2026
Last Updated
Jun 9, 2026

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