yopass Prometheus metrics middleware allows remote memory exhaustion through unbounded method labels

The Prometheus metrics middleware in pkg/server/server.go used r.Method directly as a label value on request counter and duration histogram metrics. Since the mux catch-all route matches any HTTP method, an unauthenticated attacker can send requests with arbitrary method strings e.g. curl -X "M1"...

CVE-2026-107840

The yopass secret-sharing service is vulnerable to a memory exhaustion attack in versions prior to 14.7.0 . The root cause lies in the Prometheus metrics middleware within pkg/server/server.go, which uses the attacker-controlled r.Method value as a label for yopass_http_requests_total and yopass_...

CVE-2026-107840 yopass Prometheus metrics middleware allows remote memory exhaustion through unbounded method labels

yopass is a service for securely sharing secrets, passwords, and files. Prior to version 14.7.0, the Prometheus metrics middleware in pkg/server/server.go uses the attacker-controlled r.Method value directly as the method label for yopasshttprequeststotal and yopasshttprequestdurationseconds...

EUVD-2026-95935

yopass is a service for securely sharing secrets, passwords, and files. Prior to version 14.7.0, the Prometheus metrics middleware in pkg/server/server.go uses the attacker-controlled r.Method value directly as the method label for yopasshttprequeststotal and yopasshttprequestdurationseconds...