CVE-2026-9139 Taiko AG1000-01A Rev 7.3/8 Hard-coded Credentials via login.zhtml

Critical 9.3 Published Updated

Hard-coded credentials in client-side JavaScript allow unauthenticated attackers to gain full administrative access to the Taiko SMS Alert Gateway.

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-2026-9139?

CVE-2026-9139 is a critical vulnerability in Taiko Network Communications Pte Ltd. AG1000-01A SMS Alert Gateway, published on 20 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Taiko AG1000-01A SMS Alert Gateway Rev 7.3 and Rev 8 contains a hard-coded credential vulnerability in the embedded web configuration interface where authentication is implemented entirely in client-side JavaScript in login.zhtml, exposing static plaintext credentials in the page source. Unauthenticated attackers with network access can recover administrative credentials directly from the client-side validate() function to obtain full administrative access to the device.

Weakness: CWE-798

Which versions are affected by CVE-2026-9139?

How do I fix CVE-2026-9139?

No fix has been published for CVE-2026-9139 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9139 being exploited?

There is no known exploitation of CVE-2026-9139 in the wild and no public exploit code.

Sources

Also known as GHSA-jj2w-phrm-32r8.

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