Vulnerability details

CVE-2026-13065

MongoDB Server

MongoDB $linearFill Window Function Improper Input Validation Leading to Process Termination

CVSS 4.0
7.1High

Official description

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 scores

ScoreVersionSourceVector
7.1High 4.0 CVEProject cvelistV5 (CNA) (mongodb) CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5Medium 3.1 CVEProject cvelistV5 (CNA) (mongodb) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersionsSource
MongoDB MongoDB Server 7.0 ≤ v < 7.0.39 CVEProject cvelistV5 (CNA)
MongoDB MongoDB Server 8.0 ≤ v < 8.0.28 CVEProject cvelistV5 (CNA)
MongoDB MongoDB Server 8.2.0 ≤ v < 8.2.12 CVEProject cvelistV5 (CNA)
MongoDB MongoDB Server 8.3.0 ≤ v < 8.3.7 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-07-22
Last updated
2026-07-23
State
Published
Assigner (CNA)
mongodb

Exploit prediction (EPSS)

0.49%
Probability of exploitation in 30 days
42.8%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Partial

Weaknesses (CWE)

  • CWE-476
    NULL Pointer Dereference