CVE-2026-111450 Information disclosure in Wheels

Medium 5.9 Published Updated

Attackers can redirect error emails to their address by manipulating the Host header, potentially exposing sensitive configuration and session data.

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-2026-111450?

CVE-2026-111450 is a medium-severity vulnerability in Wheels, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Wheels through 4.1.1 derives its default production error-email address from the Host header of the request that starts the application. If no explicit error-email recipient is configured, a mail server is configured, and the server accepts an attacker-chosen Host, an attacker whose request triggers a cold start can direct later error emails to an address under their control for that application's lifetime. Emails disclose error and request metadata; on engines/versions where scope dumps render, they may also disclose configuration secrets and other users' session/cookie data. On the Lucee 7 engine, scope dumps fail to render, limiting disclosure to header fields. This is fixed in 4.1.2.

Weakness: CWE-348

Which versions are affected by CVE-2026-111450?

How do I fix CVE-2026-111450?

No fix has been published for CVE-2026-111450 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-111450 being exploited?

There is no known exploitation of CVE-2026-111450 in the wild and no public exploit code.

Sources

Also known as AZL-109532, GHSA-8gcv-3v9h-7gj2, GHSA-fg56-4rxr-cx5x.

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