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Medium 5.9Published Oct 8, 2026

CVE-2026-107325Application denial of service via missing BSON array length validation in MongoDB Go Driver

Updated under an hour ago ()

Does this affect you?

It affects MongoDB Go Driver. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-129
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
Undergoing Analysis
Record last updated
Oct 15, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
MongoDB Go Driver
mongodb:go_driver (from the name)
1.1.0 builds before 1.*; from 2.0.0 before 2.9.2
CNA record

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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