CVE-2026-8983 Backdoor Authentication Token

Critical 10.0 Published Updated

Attackers can bypass authentication on Autel Maxi Charger Single devices using a hard-coded token to access privileged management endpoints.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-8983?

CVE-2026-8983 is a critical vulnerability in Autel MaxiCharger Single, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Autel Maxi Charger Single firmware through V1.03.51 contains a hard-coded authentication token that bypasses authorization checks for multiple management endpoints. An attacker can supply the special token value to invoke privileged functionality without valid authentication.

Weakness: CWE-798

Which versions are affected by CVE-2026-8983?

It affects 1 product.

Products include Autel Maxicharger Single Charger Firmware.

How do I fix CVE-2026-8983?

No fix has been published for CVE-2026-8983 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-8983 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8983 exists.

Sources

Also known as GHSA-hmfc-f829-2xf3.

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