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Medium 6.5Published Jul 22, 2026

CVE-2026-13065MongoDB $linearFill Window Function Improper Input Validation Leading to Process Termination

Updated under an hour ago ()

Does this affect you?

It affects MongoDB Server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A user with read-only privileges is able to craft an aggregation pipeline using the $linearFill window function operator with a specific sortBy expression type to cause the mongod process to terminate abnormally, resulting in denial of service. The issue stems from insufficient validation of sort specifications during execution.

CVSS
6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-476
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
Analyzed
Record last updated
Jul 23, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
MongoDB MongoDB Server
mongodb:server (from the name)
from 7.0 before 7.0.39; from 8.0 before 8.0.28; from 8.2.0 before 8.2.12; from 8.3.0 before 8.3.7
CNA record
mongodb mongodb
mongodb:mongodb
from 7.0.0 before 7.0.39; from 8.0.0 before 8.0.28; from 8.2.0 before 8.2.12; from 8.3.0 before 8.3.7
NVD

References

References

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.

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