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Fencer Intel
medium 5.9

CVE-2026-107325 json

Application denial of service via missing BSON array length validation in MongoDB Go Driver

published last mo. modified 13d ago also EUVD-2026-95170

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

Improper validation of a BSON array length in the MongoDB Go Driver can cause an out-of-bounds index and runtime panic when an application calls bson.RawArray.Validate or bsoncore.Array.Validate on a malformed four-byte array. An unauthenticated actor who can supply raw BSON array data to an affected application may terminate an unprotected application process, causing a denial of service. No confidentiality or integrity impact has been identified.

Patch / fix

  • MongoDB Go Driver 2.9.2
  • kata-containers Azure Linux 3.0 4.1.0.kata1-2
  • kata-containers-cc Azure Linux 3.0 3.15.0.aks0-23
  • kubevirt Azure Linux 3.0 1.8.4-4
  • packer Azure Linux 3.0 1.9.5-23
  • skopeo Azure Linux 3.0 1.14.4-15
  • telegraf Azure Linux 3.0 1.31.0-35

azure linux advisories AZL-107547AZL-107579AZL-107655AZL-107802AZL-107865AZL-107907

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-107325 updated cvss 5.9

go.mongodb.org/mongo-driver: MongoDB Go Driver: Denial of Service via malformed BSON array input

  • Red Hat Hardened Images prometheus3.5 3.5.5-0.8.hum1, opentofu1.11 1.11.14-0.1.hum1
    affected: no fix planned “Will not fix”
  • Red Hat Hardened Images grafana13.1 13.1.7-0.1.hum1, grafana13.2 13.2.3-0.1.hum1, grafana12.4 12.4.12-0.4.hum1, opentofu1.12 1.12.7-0.1.hum1, opentofu1.10 1.10.10-0.4.hum1
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • MongoDB Go Driver

Classification

Weakness
  • CWE-129 Improper Validation of Array Index

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.