CVE-2026-8053

high

Published 2026-05-13 · Modified 2026-05-18

CVSS v3

8.8

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2

—

VIR risk

8.8

Description

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 internal field-name-to-index mapping within the time-series bucket catalog. Under certain conditions this can result in arbitrary code execution. This issue impacts MongoDB Server v5.0 versions prior to 5.0.33, v6.0 versions prior to 6.0.28, v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

Predictions

Exploit likelihood

92%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: cna@mongodb.com — https://jira.mongodb.org/browse/SERVER-126021

Application impact

Vendor	Product	Versions	Fixed
mongodb	mongodb	`{"startIncluding":"5.0.0","endExcluding":"5.0.33"}`	`5.0.33`

References

https://jira.mongodb.org/browse/SERVER-126021

CWEs

CWE-787

Verify integrity in audit chain (admin only). AS-IS.