What is CVE-2026-13058?

CVE-2026-13058 is a medium-severity vulnerability in MongoDB, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-07-22.

How severe is CVE-2026-13058?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in MongoDB

CVE-2026-13058

An authenticated user with basic write privileges can cause the mongod process to terminate abnormally by sending a crafted transaction command with an incomplete set of required fields. The issue stems from inconsistent validation across related transaction command parameters, resulting in a fatal internal invariant failure and denial of service.

EPSS: 0.002 (13.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mongodb
Mongodb Server — versions 8.0, 8.2.0, 8.3.0

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

cna@mongodb.com (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2026-13058?: CVE-2026-13058 is a medium-severity vulnerability in MongoDB, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-07-22.
How severe is CVE-2026-13058?: Medium severity. CVSS v3 base score is 6.5 out of 10.