CVE-2026-107325

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

MEDIUM
5.9
CVSS Score
Published: October 8, 2026 at 07:01 PM UTC
Updated: October 27, 2026 at 07:41 PM UTC
1 product affected across 1 vendorGO Driver

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.1.0 ≤ v < 1.17.102.0.0 ≤ v < 2.9.21.1.02.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

Vendor AdvisoryIssue Tracking
Source: cverecord
https://jira.mongodb.org/browse/GODRIVER-4136

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUMmongodb
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-129

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