CVE-2026-113603
CVE-2026-113603 · x402 @x402/extensions 2.3.1 through 2.28.0 SIWX Payment Bypass via PaymentPayload.resource
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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.
CVSS 6.9 · Media · EPSS 0,4%
- Publicación
- Actualización
Productos y versiones afectados
@x402/extensions
- Versiones
- ≥ 2.3.1, ≤ 2.28.0: Afectada (semver)
Sin corrección publicada
x402
- Versiones
- ≥ 2.11.0, ≤ 2.25.0: Afectada (semver)
Sin corrección publicada
github.com/x402-foundation/x402/go/v2
- Versiones
- ≥ 2.16.0, ≤ 2.28.0: Afectada (semver)
Sin corrección publicada
Fuentes originales
- https://github.com/x402-foundation/x402/issues/3838
- https://github.com/x402-foundation/x402/pull/3840
- https://github.com/x402-foundation/x402/blob/npm-@x402/[email protected]/typescript/packages/extensions/src/sign-in-with-x/hooks.ts
- https://github.com/x402-foundation/x402/blob/[email protected]/python/x402/extensions/sign_in_with_x/hooks.py
- https://github.com/x402-foundation/x402/blob/go/v2.28.0/go/extensions/signinwithx/server.go
- https://www.vulncheck.com/advisories/x402-x402-extensions-2.3.1-through-2.28.0-siwx-payment-bypass-via-paymentpayload-resource
- https://nvd.nist.gov/vuln/detail/CVE-2026-113603