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.
Published: 2026-10-08
Score: 8.2 High
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Immediate Patch
AI Analysis

Impact

An integer overflow in the MongoDB Go Driver causes a runtime panic when processing a malformed BSON document. This panic stops the application process, resulting in a denial of service. The vulnerability is a classic overflow condition that crashes the Go runtime during BSON value‑length validation.

Affected Systems

The affected product is the MongoDB Go Driver. No specific version range is listed, so all current and future releases that have not yet applied the fix remain vulnerable until an update is applied.

Risk and Exploitability

The CVSS score of 8.2 indicates a high severity risk. No EPSS score is available, and the vulnerability is not listed in the CISA KEV catalog. An unauthenticated actor who can provide malicious BSON bytes to a running application is likely to trigger the panic, leading to service interruption. The driver’s server‑monitoring path contains panic recovery, but it only mitigates failures during server selection, not the general application crash.

Generated by OpenCVE AI on October 8, 2026 at 20:55 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade to the latest version of the MongoDB Go Driver once the vendor releases a fix for the overflow bug.
  • Implement strict input validation or a whitelist for permitted BSON structures to prevent malformed data from reaching the driver.
  • Wrap BSON processing in application‑level recover blocks or restart logic to recover promptly from unexpected panics.

Generated by OpenCVE AI on October 8, 2026 at 20:55 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 27 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mongodb:go_driver:*:*:*:*:*:mongodb:*:*

Tue, 20 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 08 Oct 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb go Driver
Vendors & Products Mongodb
Mongodb go Driver

Thu, 08 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 08 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
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.
Title Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver
Weaknesses CWE-190
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.2, 'vector': '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'}


Subscriptions

Mongodb Go Driver
cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-10-08T19:31:13.465Z

Reserved: 2026-10-07T17:54:28.161Z

Link: CVE-2026-107324

cve-icon Vulnrichment

Updated: 2026-10-08T19:31:09.353Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-08T19:17:00.020

Modified: 2026-10-27T19:43:13.227

Link: CVE-2026-107324

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-08T18:58:01Z

Links: CVE-2026-107324 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T21:00:14Z

Weaknesses
  • CWE-190

    Integer Overflow or Wraparound