Description
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.
Published: 2026-10-13
Score: 5.3 Medium
EPSS: n/a
KEV: No
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Remediation

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History

Tue, 13 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Fixed values in MongoDB Server $bucket stage may be misread as field references
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-10-13T16:20:06.145Z

Reserved: 2026-10-01T15:53:56.581Z

Link: CVE-2026-103965

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-13T16:17:10.790

Modified: 2026-10-13T16:17:10.790

Link: CVE-2026-103965

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T16:30:10Z

Weaknesses
  • CWE-94

    Improper Control of Generation of Code ('Code Injection')