CVE-2026-47074
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-295
Validación incorrecta de certificados
Fecha de publicación:
28/05/2026
Última modificación:
29/05/2026
Descripción
*** Pendiente de traducción *** Improper Certificate Validation vulnerability in ex-aws ex_aws_sns (ExAws.SNS, ExAws.SNS.PublicKeyCache modules) allows Signature Spoofing by Improper Validation.<br />
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This vulnerability is associated with program files lib/ex_aws/sns.ex, lib/ex_aws/sns/public_key_cache.ex and program routines &#39;Elixir.ExAws.SNS&#39;:verify_message/1, &#39;Elixir.ExAws.SNS.PublicKeyCache&#39;:get/1.<br />
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&#39;Elixir.ExAws.SNS&#39;:verify_message/1 fetches the signing certificate from the SigningCertURL field of the incoming SNS message without validating that the URL uses HTTPS or that the host matches an AWS-owned SNS certificate domain. An unauthenticated attacker who can POST to an endpoint that calls verify_message/1 can supply an attacker-controlled SigningCertURL, sign a forged SNS message with their own key, and cause the function to return :ok, completely bypassing SNS signature verification.<br />
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This issue affects ex_aws_sns: from 2.0.1 before 2.3.5.
Impacto
Puntuación base 4.0
8.70
Gravedad 4.0
ALTA