CVE-2026-107324

Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver

State: Published
Severity: 8.2 High
Published: Oct 8, 2026
Updated: Oct 8, 2026
Reserved: Oct 7, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.2 High	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	mongodb
3.1	5.9 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	mongodb

Weaknesses

CWE-190 Integer Overflow or Wraparound

Affected Products

Product	Versions
Go DriverMongoDB	1.0.0 to before 1.2.0Affected 2.0.0 to before 2.9.0Affected

References

https://jira.mongodb.org/browse/GODRIVER-4102

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