CVE-2026-103965Fixed values in MongoDB Server $bucket stage may be misread as field references
Updated under an hour ago ()
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It affects MongoDB Server. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mongodb
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 13, 2026
Affected products
MongoDB MongoDB Server mongodb:server (from the name) | from 8.3.0 before 8.3.13; from 8.0 before 8.0.34; from 7.0 before 7.0.45; from 9.0 before 9.0.4 | CNA record |
References
- https://jira.mongodb.org/browse/SERVER-134618
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.