Disabled TLS Certificate Validation Enables MITM Attacks

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-103906
StatePUBLISHED
AssignerENISA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-09 17:17:06 UTC
Updated2026-11-09 18:17:18 UTC
DescriptionUse of hard-coded MQTT credentials in the AM CLUB mobile application allows an authenticated attacker to connect to the MQTT broker and access data or perform actions across tenant boundaries.

Risk And Classification

Primary CVSS: v4.0 7.8 HIGH from a6d3dc9e-0591-4a13-bce7-0f5b31ff6158

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-798 | CWE-798 CWE-798

VersionSourceTypeScoreSeverityVector
4.0a6d3dc9e-0591-4a13-bce7-0f5b31ff6158Secondary7.8HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/C...
4.0CNACVSS7.8HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N/E:U

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Sub Conf.
High
Sub Integrity
High
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Am Automatic Machines Am Club affected 1.7.194 1.8.198 semver iOS, Android

References

ReferenceSourceLinkTags
github.com/livieromarco/security-advisories/blob/main/advisories/CVE-202... a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Liviero Marco (en)

CNA: CSIRT-IT (en)

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