CVE-2026-66296

Improper Neutralization of Input During Web Page Generation XSS vulnerability in lud oaskit allows reflected cross-site scripting via the default HTML error handler. Oaskit.ErrorHandler.Default.formatreason/4 and Oaskit.ErrorHandler.Default.reasontohtml/1 in lib/oaskit/errorhandler/default.ex...

CVE-2026-66296 Reflected XSS in oaskit's default HTML error handler

Improper Neutralization of Input During Web Page Generation XSS vulnerability in lud oaskit allows reflected cross-site scripting via the default HTML error handler. Oaskit.ErrorHandler.Default.formatreason/4 and Oaskit.ErrorHandler.Default.reasontohtml/1 in lib/oaskit/errorhandler/default.ex...

CVE-2026-66296

The CVE-2026-66296 issue concerns oaskit: a reflected XSS vulnerability in the default HTML error handler. The root cause is that Oaskit.ErrorHandler.Default.format_reason/4 and Oaskit.ErrorHandler.Default.reason_to_html/1 render request-validation failures as HTML when the Accept header includes...