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MEDIUM · 4.3

CVE-2026-13063

An authenticated user with standard read/write privileges can cause the mongod process to terminate due to an out-of-memory condition by sending a crafted aggregation command. MongoDB's libmongocrypt ...

Vulnerability Description

An authenticated user with standard read/write privileges can cause the mongod process to terminate due to an out-of-memory condition by sending a crafted aggregation command. MongoDB's libmongocrypt library insufficiently validates payload-supplied values, which can result in an excessively large memory allocation.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW

Affected Products

VendorProductVersions
MongodbMongodb>= 8.2.0, < 8.2.12

Related Weaknesses (CWE)

CWE-190

References

FAQ

What is CVE-2026-13063?

CVE-2026-13063 is a vulnerability with a CVSS score of 4.3 (MEDIUM). An authenticated user with standard read/write privileges can cause the mongod process to terminate due to an out-of-memory condition by sending a crafted aggregation command. MongoDB's libmongocrypt ...

How severe is CVE-2026-13063?

CVE-2026-13063 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13063?

Check the references section above for vendor advisories and patch information. Affected products include: Mongodb Mongodb.