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        "state": "PUBLISHED",
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        "dateReserved": "2026-10-21T21:59:05.256Z",
        "datePublished": "2026-10-22T01:43:42.056Z",
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            "datePublic": "2026-10-07T00:00:00.000Z",
            "title": "Traefik before 2.11.58 and 3.7.13 mTLS Bypass via Negated Host Matcher",
            "descriptions": [
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                    "lang": "en",
                    "value": "Traefik before 2.11.58 and 3.7.13 contains an authentication bypass vulnerability that allows unauthenticated clients to skip client-certificate checks because negated Host matchers are counted as served domains. Attackers can reach backends protected by RequireAndVerifyClientCert when a router rule with !Host() creates a TLS options conflict that falls back to the default options."
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