What’s Vulnerable › Vulnerabilities
CVE-2026-107324: Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver
- Severity: medium (CVSS 5.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-08 · updated 2026-10-27
- Weakness: CWE-190
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.
Affected products
- MongoDB Go Driver: from 1.0.0 before 1.2.0; from 2.0.0 before 2.9.0 — fixed in 1.2.0, 2.9.0
- MongoDB Go Driver: from 1.0.0 before 1.2.0; from 2.0.0 before 2.9.0 — fixed in 1.2.0, 2.9.0
How to fix
Upgrade to a fixed version: MongoDB Go Driver 1.2.0, 2.9.0; MongoDB Go Driver 1.2.0, 2.9.0. Check the vendor advisory for mitigations.
References
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