# CVE-2026-86689: Bransys ELD cleartext transmission of sensitive information in MQTT

Source: https://junglewise.ai/threats/cve-2026-86689-bransys-eld-is-shipped-with-hardcoded-mqtt-credentials-which-will  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-18. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-86689 · Severity: medium · CVSS 5.9 · Published 2026-09-18

Bransys ELD is a fleet management application for electronic logging devices used by transportation carriers. The app transmits sensitive telemetry data over MQTT without encryption, allowing attackers with network access to intercept real-time location and operational data for all connected vehicles. An attacker can read all telemetry from any device connected to the affected MQTT broker without authentication.

Technologies: [Bransys ELD](https://junglewise.ai/threats/technologies/eld). Vendors: [Bransys](https://junglewise.ai/threats/vendors/bransys).

## Quick answers

**Is CVE-2026-86689 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86689 being exploited in the wild.

**How severe is CVE-2026-86689?** Medium severity, with a CVSS score of 5.9, published 18 September 2026.

**Which products and versions are affected?** Bransys ELD Android < 11.00.00; iOS < 1.1.54.

**Is there a fix for CVE-2026-86689?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-86689 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-86689?** Check whether you run Bransys ELD at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

CVE-2026-86689 affects the MQTT communication channel used by Bransys ELD to transmit device telemetry. The vulnerability involves cleartext transmission of sensitive information over the network without TLS encryption (CWE-319). An unauthenticated, network-based attacker can passively eavesdrop on or actively connect to the MQTT broker to read all sensitive telemetry data from affected devices; no user interaction or authentication is required.

## Affected products

- Bransys ELD Android < 11.00.00; iOS < 1.1.54

## Timeline

- 2026-09-17: disclosed
- 2026-09-18: advisory: CISA ICS Advisory ICSA-26-260-01 published

## References

- [https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-260-01.json](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-260-01.json)
- [https://www.cisa.gov/news-events/ics-advisories/icsa-26-260-01](https://www.cisa.gov/news-events/ics-advisories/icsa-26-260-01)

## Related threats

- [Bransys ELD hardcoded credentials and cleartext transmission](https://junglewise.ai/threats/cve-2026-86520-bransys-eld-hardcoded-credentials-and-cleartext-transmission)
- [Bransys ELD hardcoded FTP credentials](https://junglewise.ai/threats/cve-2026-77960-bransys-eld-is-shipped-with-hardcoded-mqtt-credentials-which-will)