{"metadata": {"vulnerability": "CVE-2026-113603", "count": 14, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 9}}, "data": [{"timestamp": "2026-10-17T12:38:29Z", "date_only": false, "value": "2026-10-17T12:38:29.000Z", "kind": "other", "label": "Made public", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-113603", "field": "containers.cna.datePublic", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-20T11:48:49.343Z", "date_only": false, "value": "2026-10-20T11:48:49.343Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-113603", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-20T15:40:30.742Z", "date_only": false, "value": "2026-10-20T15:40:30.742Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-113603", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-20T15:40:30.742Z", "date_only": false, "value": "2026-10-20T15:40:30.742Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-113603", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-20T15:57:02.631Z", "date_only": false, "value": "2026-10-20T15:57:02.631910Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117474054770869353", "record": "CVE-2026-113603", "field": "creation_timestamp", "uuid": "9a902180-bcd6-4c00-8bee-004217f75db6", "content": "CVE-2026-113603 x402 @x402/extensions 2.3.1 through 2.28.0 SIWX Payment Bypass via PaymentPayload.resource The x402 SIWX server extension in @x402/extensions 2.3.1 through 2.28.0, x402 PyPI 2.11.0 through 2.25.0, and Go module 2.16.0 through 2.28.0 contains an authorization bypass vulnerability that allows paying clients to unlock unpaid routes by supplying a mismatched PaymentPayload.resource URL. Attackers can pay for the cheapest SIWX-protected route while setting resource.url to an expensive route, then repeatedly access it using only a SIGN-IN-WITH-X header without further payment.\nhttps://www.cve.org/CVERecord?id=CVE-2026-113603https://github.com/x402-foundation/x402/issues/3838https://github.com/x402-foundation/x402/pull/3840https://github.com/x402-foundation/x402/blob/npm-@x402/extensions@v2.28.0/typescript/packages/extensions/src/sign-in-with-x/hooks.tshttps://github.com/x402-foundation/x402/blob/pypi-x402@v2.25.0/python/x402/extensions/sign_in_with_x/hooks.pyhttps://github.com/x402-foundation/x402/blob/go/v2.28.0/go/extensions/signinwithx/server.gohttps://www.vulncheck.com/advisories/x402-x402-extensions-2.3.1-through-2.28.0-siwx-payment-bypass-via-paymentpayload-resource#x402-foundation #@x402/extensions #x402 #github.com/x402-foundation/x402/go/v2#CVE_2026_113603#bot", "url": "https://infosec.exchange/users/cve/statuses/117474054770869353"}, {"timestamp": 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