{"schemaVersion":3,"id":"CVE-2026-25791","aliases":["GHSA-wxrw-gvg8-fqjp","GO-2026-4466"],"status":"published","duplicateOf":null,"title":null,"description":"Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.7.0, the DNS C2 listener accepts unauthenticated TOTP bootstrap messages and allocates server-side DNS sessions without validating OTP values, even when EnforceOTP is enabled. Because sessions are stored without a cleanup/expiry path in this flow, an unauthenticated remote actor can repeatedly create sessions and drive memory exhaustion. 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