What is GHSA-wvrr-4w4f-3v54?

GHSA-wvrr-4w4f-3v54 is a security advisory published by GitHub Security Advisories with High severity. A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash...

Which CVE IDs does GHSA-wvrr-4w4f-3v54 cover?

GHSA-wvrr-4w4f-3v54 covers the following CVE IDs: CVE-2026-9740. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-wvrr-4w4f-3v54?

GHSA-wvrr-4w4f-3v54 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-wvrr-4w4f-3v54HighCVSS 7.5

A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash...

Vendor

GitHub Security Advisories

Published

June 10, 2026

Last Modified

June 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-9740 →

📋 Description

A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual recursion between validation functions, where each re-entry resets internal depth tracking.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-9740
https://jira.mongodb.org/browse/SERVER-125063
https://github.com/advisories/GHSA-wvrr-4w4f-3v54