Medium severity · published Oct 8, 2026
CVE-2026-107324
Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver
5.9
CVSS
0.2%
EPSS
No
On KEV
Description
An integer overflow in BSON value-length handling in the MongoDB Go Driver can cause a runtime panic when an application validates or accesses a malformed BSON document. An unauthenticated actor who can supply BSON bytes to an affected application may terminate an unprotected application process, causing a denial of service. The driver's server-monitoring path contains panic recovery and is limited to server-selection failure.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
MongoDB · MongoDB
1.0.0 before 1.2.0; 2.0.0 before 2.9.0 · source: vendor
GD
GO Driver · Mongodb
1.0.0 before 1.2.0; 2.0.0 before 2.9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-107324
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-107324
jira.mongodb.org
https://jira.mongodb.org/browse/GODRIVER-4102
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