What is CVE-2026-11933?

CVE-2026-11933 is a high-severity vulnerability, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-06-12.

How severe is CVE-2026-11933?

High severity. CVSS v3 base score is 8.8 out of 10.

CVE-2026-11933

CVE-2026-11933

A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cna@mongodb.com

Frequently asked questions

What is CVE-2026-11933?: CVE-2026-11933 is a high-severity vulnerability, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-06-12.
How severe is CVE-2026-11933?: High severity. CVSS v3 base score is 8.8 out of 10.