Skip to content
MongoDBCVE-2026-13063

MongoDB Server: integer overflow

Medium5.3CVE-2026-13063 · Published Jul 22, 2026 · updated Aug 5, 2026

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.

MongoDB advisory

Affected versions

PackageAffectedFixed in
MongoDB Server
Product
>= 8.2.0, < 8.2.128.2.12
>= 8.3.0, < 8.3.78.3.7
Details and references
CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-190

More MongoDB advisories

All MongoDB
Advisory
MongoDB Server: reachable assertion
High7.1Jul 22
MongoDB Compass: command injection
High8.4Jul 22
MongoDB Server: resource exhaustion
Medium6.9Jul 22
MongoDB Server: resource exhaustion
High7.1Jul 22
MongoDB Server: resource exhaustion
High7.1Jul 22
MongoDB Server: out-of-bounds read
High7.1Jul 22

Critical advisories by email

Wednesdays: the week’s critical and high advisories in the AI and data stack, with the fixed versions. Only in weeks that have some.

Double opt-in. Unsubscribe any time.