CVE-2026-116105 HeyCyan App CVE debrief

Who should care

Android app developers, security teams, and users of the HeyCyan App should be aware of this vulnerability and take steps to review and update the Network Security Configuration to prevent cleartext transmission of sensitive information.

Why it matters

CVE-2026-116105 is a medium-severity vulnerability in HeyCyan App 1.0.103 on Android, allowing for cleartext transmission of sensitive information due to a misconfigured Network Security Configuration. Defenders should review and update the configuration to prevent exploitation.

• Defenders should verify the Network Security Configuration in AndroidManifest.xml to prevent cleartext transmission of sensitive information.
• Security teams should review and update the configuration to ensure secure communication.
• Android app developers should ensure that their apps use secure communication protocols to protect sensitive information.
• Remediation priority is medium, as the exploitability is difficult and requires high complexity.

Technical summary

The HeyCyan App 1.0.103 on Android has a weakness in the Network Security Configuration, specifically in the AndroidManifest.xml file, which allows for cleartext transmission of sensitive information. This issue can be exploited remotely with high complexity. The vulnerability was reported by VulDB and affects Android app developers, security teams, and users of the HeyCyan App. Defenders should review and update the configuration to prevent exploitation. The CVE record and VulDB references provide details on the weakness in HeyCyan App 1.0.103.

Defensive priority

Medium priority for Android app developers and security teams to review and update the Network Security Configuration.

Recommended defensive actions

• Review and update the Network Security Configuration in AndroidManifest.xml to prevent cleartext transmission of sensitive information.
• Verify the affected version (1.0.103) and consider updating to a fixed version if available.
• Monitor for any additional information from the vendor or other sources regarding this vulnerability.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record and VulDB references provide details on the weakness in HeyCyan App 1.0.103. However, the vendor did not respond to the disclosure, and there is limited information on affected versions or remediation.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.