CVE-2026-63087 Grafana OnCall 1.16.11 Unauthenticated Token Hijack via Plugin Install Endpoint

Grafana OnCall through 1.16.11 contains an unauthenticated access vulnerability that allows remote attackers to obtain a valid PluginAuthToken by sending a POST request to the internal plugin install endpoint using hardcoded default stackid and orgid values present in the public source tree...

Convert the SecurityHeadersInterceptor into a filter that applies to /*

The X-XSS-Protection HTTP header should be sent on all responses with a value of "1; mode=block". As the current implementation is done in an interceptor0 it is possible for some resources to be sent without the X-XSS-Protection header. 0 SecurityHeadersInterceptor is in the default interceptor...