What is CVE-2026-8053?

CVE-2026-8053 is a high-severity vulnerability in Mongodb, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-05-13.

How severe is CVE-2026-8053?

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

Is CVE-2026-8053 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Mongodb

CVE-2026-8053

An issue in MongoDB Server's time-series collection implementation allows an authenticated user with database write privileges to trigger an out-of-bounds memory write in the mongod process. The issue results from an inconsistency in the i…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (30.2th percentile) — read the EPSS interpretation.

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.

Affected products

Mongodb
Mongodb, Inc. Mongodb Server — versions 5.0, 6.0, 7.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

mgiay/CVE-2026-8053-MongoDB

References

cna@mongodb.com (issue-tracking, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-8053?: CVE-2026-8053 is a high-severity vulnerability in Mongodb, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-05-13.
How severe is CVE-2026-8053?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2026-8053 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.