CVE-2026-13063

MEDIUMCVSS 6.5/10EPSS 0.40%

Last modified

CVE-2026-13063 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

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.

Metrics

Weakness Enumeration

Affected Software

VendorProductVersions
MongodbMongodb>= 8.2.0, < 8.2.12
MongodbMongodb>= 8.3.0, < 8.3.7

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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 library insufficiently validates payload-supplied values, which can result in an excessively large memory allocation.
How severe is CVE-2026-13063?
CVE-2026-13063 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2026-13063?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST