CVE-2026-71277Network attack vector

Unauthenticated API access via unchecked header

Published Aug 5, 2026 · Updated Aug 5, 2026

Authentication bypass in IoT-Group Rust IoT Platform version 0 and later allows remote attackers to access protected APIs. The AuthToken guard in api/src/main.rs accepts any Authorization header value without validating a session, stored token, signature, or claims. Network access to a route protected only by this guard permits unauthenticated reading or modification of the resources that route exposes.

CVSS severity9.1
Critical
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in IoT-Group Rust IoT Platform version 0 and later allows remote attackers to access protected APIs. The AuthToken guard in api/src/main.rs accepts any Authorization header value without validating a session, stored token, signature, or claims. Network access to a route protected only by this guard permits unauthenticated reading or modification of the resources that route exposes.

The record

CVE
CVE-2026-71277
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
IoT-Group
Product
Rust IoT Platform
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IoT-Group · Rust IoT Platformversion=0 <=*

Published CVSS scores

9.1TuranSecCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo