CVE-2026-27553 Information Disclosure via Schema Path Manipulation

Medium 6.5 Published Updated

A low-privileged attacker can manipulate schema paths to disclose all user password hashes in industrial I/O modules.

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

What is CVE-2026-27553?

CVE-2026-27553 is a medium-severity vulnerability in Carlo Gavazzi Automation ICE2-8IOL-G65L-V1D, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A low-privileged remote attacker can manipulate the schema path parameter in the /index.php/diagnostics_tab/ajax_diag_table_rows endpoint using a valid user cookie allowing disclosure of all user password hashes.

Weakness: CWE-497

Which versions are affected by CVE-2026-27553?

How do I fix CVE-2026-27553?

No fix has been published for CVE-2026-27553 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-27553 being exploited?

There is no known exploitation of CVE-2026-27553 in the wild and no public exploit code.

Sources

Also known as GHSA-8vhg-m252-v9wj.

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