CVE-2026-13055

EUVD-2026-47780
The `$_internalIndexKey` aggregation expression can be used by any authenticated user to crash a MongoDB server (mongod). The expression fails to handle compound wildcard index specifications, triggering an internal consistency check that aborts the server process. The user must be able to run an aggregation pipeline.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 20.54%
Affected Products (NVD)
VendorProductVersion
mongodbmongodb
7.0.0 ≤
𝑥
< 7.0.39
mongodbmongodb
8.0.0 ≤
𝑥
< 8.0.28
mongodbmongodb
8.2.0 ≤
𝑥
< 8.2.12
mongodbmongodb
8.3.0 ≤
𝑥
< 8.3.7
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mongodb
bionic
needs-triage
focal
needs-triage
jammy
dne
noble
dne
resolute
dne
trusty
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://jira.mongodb.org/browse/SERVER-123081