๐Ÿ” CVE Alert

CVE-2026-103965

MEDIUM 5.4

Fixed values in MongoDB Server $bucket stage may be misread as field references

CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th

An issue in MongoDB Server's aggregation framework can cause certain constant values to be handled incorrectly during internal query rewriting. Under certain conditions, an authenticated user with read access may receive field values in aggregation output that the query did not intend to return.

CWE CWE-94
Vendor mongodb
Product mongodb server
Ecosystems
Industries
Technology
Published Oct 13, 2026
Last Updated Oct 13, 2026
Stay Ahead of the Next One

Get instant alerts for mongodb mongodb server

Be the first to know when new medium vulnerabilities affecting mongodb mongodb server are published โ€” delivered to Slack, Telegram or Discord.

Get Free Alerts โ†’ Free ยท No credit card ยท 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Affected Versions

MongoDB / MongoDB Server
8.3.0 < 8.3.13 8.0 < 8.0.34 7.0 < 7.0.45 9.0 < 9.0.4

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
jira.mongodb.org: https://jira.mongodb.org/browse/SERVER-134618