Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT (CVE-2026-71960) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-71960

Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT

Answer in brief

CVE-2026-71960 records a Unknown severity vulnerability in Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT. The current sources do not mark it as known exploited. The current feed maps Shenzhen Cudy Technology Co., Ltd./WR3000 2.0 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 19, 2026Updated Aug 19, 2026Source checked Aug 19, 2026First seen by HOL Aug 19, 2026Material review Aug 19, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Shenzhen Cudy Technology Co., Ltd./WR3000 2.0 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Shenzhen Cudy Technology Co., Ltd./WR3000 2.0generic	>=0 <2.5.24	2.5.24

Recommended response

Check inventory. Check lockfiles and deployed manifests for Shenzhen Cudy Technology Co., Ltd./WR3000 2.0.
Review the reported fix. Update Shenzhen Cudy Technology Co., Ltd./WR3000 2.0 to 2.5.24 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 19, 2026

Sources and claim methodology

Upstream source description

Cudy WR3000 2.0 running firmware before 2.5.24 contains a hard-coded JWT HMAC signing secret vulnerability in the Mosquitto MQTT broker's authentication plugin that allows unauthenticated attackers to forge valid JWT tokens by extracting the secret from the firmware image. Attackers can use the extracted secret to craft arbitrary JWT tokens and authenticate to the MQTT broker without legitimate credentials, gaining unauthorized access to the device's mesh networking interface.

Quoted source text, attributed separately from HOL analysis.