https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 23:03:14 +0000 https://db.gcve.eu/vuln/cve-2026-82756 <p><strong>Affected:</strong> ash-project ash_authentication_oauth2_server</p> <p>Improper Encoding or Escaping of Output vulnerability in ash-project ash_authentication_oauth2_server allows an unauthenticated attacker to inject arbitrary authentication parameters into the WWW-Authenticate challenge header.</p> <p>BearerPlug and RequireScopePlug built the Bearer resource_metadata=&#34;...&#34; challenge by interpolating a resource_metadata URL derived from the request tenant directly into the quoted value. In a multi-tenant application that sets the Ash tenant from request-controlled data (a subdomain, the Host, a path segment, or a header), a tenant containing a &#34; closes the quoted value and appends attacker-chosen auth-params, including a second resource_metadata URL pointing at an attacker-controlled authorization server that spec-following clients follow. Carriage returns and line feeds are rejected by Plug, so this is parameter injection within one header, not response splitting.</p> <p>This issue affects ash_authentication_oauth2_server: from 0.1.3 before 0.3.1.</p> <p><strong>Affected:</strong> ash-project ash_authentication_oauth2_server</p> <p>Improper Encoding or Escaping of Output vulnerability in ash-project ash_authentication_oauth2_server allows an unauthenticated attacker to inject arbitrary authentication parameters into the WWW-Authenticate challenge header.</p> <p>BearerPlug and RequireScopePlug built the Bearer resource_metadata=&#34;...&#34; challenge by interpolating a resource_metadata URL derived from the request tenant directly into the quoted value. In a multi-tenant application that sets the Ash tenant from request-controlled data (a subdomain, the Host, a path segment, or a header), a tenant containing a &#34; closes the quoted value and appends attacker-chosen auth-params, including a second resource_metadata URL pointing at an attacker-controlled authorization server that spec-following clients follow. Carriage returns and line feeds are rejected by Plug, so this is parameter injection within one header, not response splitting.</p> <p>This issue affects ash_authentication_oauth2_server: from 0.1.3 before 0.3.1.</p> https://db.gcve.eu/vuln/cve-2026-82756