CVE-2026-49332

A flaw was found in openshift/oauth-proxy. The proxy sets authenticated identity headers using only dash-variant keys X-Forwarded-User but does not strip underscore-variant keys XForwardedUser from incoming requests. WSGI and PHP frameworks normalize both variants to the same variable, allowing a...

CVE-2026-54763

A flaw was found in Traefik, an HTTP reverse proxy and load balancer. The BasicAuth, DigestAuth, and ForwardAuth middlewares in Traefik do not correctly treat underscore-variant header names. This allows a remote attacker to inject a specially crafted header that bypasses Traefik's security...

CVE-2026-3902

A flaw was found in Django. A remote attacker can exploit an ambiguous mapping of header variants with hyphens or underscores to a single version with underscores in ASGIRequest. This vulnerability allows the attacker to spoof headers, potentially leading to unauthorized actions or misdirection...

CVE-2026-3902

The Django web application framework is vulnerable to a remote header spoofing attack due to an issue in the ASGIRequest component. The root cause is an ambiguous mapping where two header variants (using hyphens or underscores) are mapped to a single version using underscores. This allows an atta...