Quick answers
- Is CVE-2026-111450 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-111450 being exploited in the wild.
- How severe is CVE-2026-111450?
- Medium severity, with a CVSS score of 5.9, published 16 October 2026.
- Which products and versions are affected?
- Wheels 4.1.1 and earlier.
- Is there a fix for CVE-2026-111450?
- Yes: fixed in 4.1.2. Until then: Set errorEmailToAddress and errorEmailFromAddress (or errorEmailAddress) explicitly in config/production/settings.cfm, or set sendEmailOnError=false. Configure the web server or load balancer to reject requests with Host headers that are not one of the application's legitimate hostnames.</anigation> <parameter name="timeline">[{"kind": "advisory", "at": "2026-10-01"}, {"kind": "patched", "at": "2026-10-16"}] Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-111450 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-111450?
- Check whether you run Wheels at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 4.1.2
Set errorEmailToAddress and errorEmailFromAddress (or errorEmailAddress) explicitly in config/production/settings.cfm, or set sendEmailOnError=false. Configure the web server or load balancer to reject requests with Host headers that are not one of the application's legitimate hostnames.</anigation> <parameter name="timeline">[{"kind": "advisory", "at": "2026-10-01"}, {"kind": "patched", "at": "2026-10-16"}]
Technical details
Wheels derives a default error-email recipient address from the Host header (cgi.server_name) of the request that triggers onApplicationStart, constructing an address as webmaster@[last-two-labels-of-host]. An unauthenticated attacker can send the first request after a cold start with a crafted Host header to redirect all production error emails to attacker-controlled infrastructure. Error emails contain CGI, Form, URL, Application, Session, Request and Cookie scope dumps which may expose configuration secrets and other users' session/cookie data (though on Lucee 7, scope dumps fail to render, limiting disclosure to headers).
Affected products
- Wheels Wheels 4.1.1 and earlier