MongoDB up to 7.0.47/8.0.36/8.3.15/9.0.6 User Lookup privileges management

Summaryinfo

A vulnerability described as problematic has been identified in MongoDB up to 7.0.47/8.0.36/8.3.15/9.0.6. The impacted element is an unknown function of the component User Lookup. The manipulation results in privileges management. This vulnerability was named CVE-2026-120807. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in MongoDB up to 7.0.47/8.0.36/8.3.15/9.0.6. Affected is an unknown code block of the component User Lookup. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A flaw in MongoDB’s X.509 cluster-membership authentication guard could allow a holder of a cluster-member certificate to gain elevated internal privileges when a specific deployment configuration is in use. An internal check, which prevents a certificate recognized as a cluster member from also being treated as a regular user, does not correctly distinguish between certain error conditions encountered during user lookup. Under certain timing conditions, this can cause the check to be bypassed, granting the connection full internal system privileges. Triggering this issue requires possession of a valid cluster-member TLS certificate, non-default X.509 cluster authentication configuration, and specific conditions during the user cache lookup process.

The advisory is shared for download at jira.mongodb.org. This vulnerability is traded as CVE-2026-120807 since 11/02/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 7.0.48, 8.0.37, 8.3.16 or 9.0.7 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Database Software

Name

• MongoDB

Version

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9
• 7.0.10
• 7.0.11
• 7.0.12
• 7.0.13
• 7.0.14
• 7.0.15
• 7.0.16
• 7.0.17
• 7.0.18
• 7.0.19
• 7.0.20
• 7.0.21
• 7.0.22
• 7.0.23
• 7.0.24
• 7.0.25
• 7.0.26
• 7.0.27
• 7.0.28
• 7.0.29
• 7.0.30
• 7.0.31
• 7.0.32
• 7.0.33
• 7.0.34
• 7.0.35
• 7.0.36
• 7.0.37
• 7.0.38
• 7.0.39
• 7.0.40
• 7.0.41
• 7.0.42
• 7.0.43
• 7.0.44
• 7.0.45
• 7.0.46
• 7.0.47
• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6
• 8.0.7
• 8.0.8
• 8.0.9
• 8.0.10
• 8.0.11
• 8.0.12
• 8.0.13
• 8.0.14
• 8.0.15
• 8.0.16
• 8.0.17
• 8.0.18
• 8.0.19
• 8.0.20
• 8.0.21
• 8.0.22
• 8.0.23
• 8.0.24
• 8.0.25
• 8.0.26
• 8.0.27
• 8.0.28
• 8.0.29
• 8.0.30
• 8.0.31
• 8.0.32
• 8.0.33
• 8.0.34
• 8.0.35
• 8.0.36
• 8.3.0
• 8.3.1
• 8.3.2
• 8.3.3
• 8.3.4
• 8.3.5
• 8.3.6
• 8.3.7
• 8.3.8
• 8.3.9
• 8.3.10
• 8.3.11
• 8.3.12
• 8.3.13
• 8.3.14
• 8.3.15
• 9.0.0
• 9.0.1
• 9.0.2
• 9.0.3
• 9.0.4
• 9.0.5
• 9.0.6

License

• open-source

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CPE 2.2info

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Entryinfo

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