CVEvulnerability

CVE-2021-20330

6.5 MEDIUM Published 2021-12-15 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-12-15
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
Weaknesses
CWE-20

Description

An attacker with basic CRUD permissions on a replicated collection can run the applyOps command with specially malformed oplog entries, resulting in a potential denial of service on secondaries. This issue affects MongoDB Server v4.0 versions prior to 4.0.27; MongoDB Server v4.2 versions prior to 4.2.16; MongoDB Server v4.4 versions prior to 4.4.9.

Affected configurations

• mongodb mongodb (>= 4.0.0 < 4.0.25) • mongodb mongodb (>= 4.2.0 < 4.2.14) • mongodb mongodb (>= 4.4.0 < 4.4.6)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References