CVE-2026-81524

EUVD-2026-67208
A weakness in the MongoDB C Driver allows special elements in caller-supplied database and collection name components to pass without sanitization when the driver composes the target namespace for an operation. An application that incorporates untrusted input into these name components can have operations directed at a resource other than the one intended.
Resource Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 17.34%
Affected Products (NVD)
VendorProductVersion
mongodbc_driver
1.0.0 ≤
𝑥
< 2.5.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mongo-c-driver
bookworm
postponed
forky
2.5.5-1
fixed
sid
2.5.5-1
fixed
trixie
1.30.4-1+deb13u3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mongo-c-driver
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
Common Weakness Enumeration
References
https://github.com/mongodb/mongo-c-driver/releases/tag/2.5.1
https://jira.mongodb.org/browse/CDRIVER-6424