MongoDB BI Connector up to 2.14.30 TLS Handshake improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k1.55+

Summaryinfo

A vulnerability classified as problematic was found in MongoDB BI Connector up to 2.14.30. This affects an unknown part of the component TLS Handshake. Executing a manipulation can lead to improper authentication. This vulnerability is registered as CVE-2026-81518. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in MongoDB BI Connector up to 2.14.30. It has been declared as problematic. This vulnerability affects an unknown function of the component TLS Handshake. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality. CVE summarizes:

When mongosqld is configured with a client certificate authority file, the listener requests a client certificate during the TLS handshake but does not require one, so a client that presents no certificate is still accepted. In deployments that rely on client certificates as the sole means of identifying users, a remote party with network access to the listener can therefore establish a session and read the MongoDB data exposed through the connector.

The advisory is available at mongodb.com. This vulnerability was named CVE-2026-81518 since 08/27/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

Upgrading to version 2.14.31 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (mongodb): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BI Connector 2.14.31

Timelineinfo

08/27/2026 CVE reserved
08/28/2026 +1 days VulDB entry created
08/29/2026 +0 days Advisory disclosed
08/29/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: mongodb.com
Status: Confirmed

CVE: CVE-2026-81518 (🔒)
GCVE (CVE): GCVE-0-2026-81518
GCVE (VulDB): GCVE-100-396970

Entryinfo

Created: 08/29/2026 00:48
Changes: 08/29/2026 00:48 (76)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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