Unvalidated parent-supplied AWS Region in AWS aws-nitro-enclaves-sdk-c allows impersonation of the enclave's AWS KMS endpoint

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    "assignerShortName": "AMZN",
    "dateUpdated": "2026-10-30T18:08:59.904Z",
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      "title": "Unvalidated parent-supplied AWS Region in AWS aws-nitro-enclaves-sdk-c allows impersonation of the enclave's AWS KMS endpoint",
      "descriptions": [
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          "lang": "en",
          "value": "Incomplete string validation in AWS aws-nitro-enclaves-sdk-c before 0.4.6 may allow a third party to impersonate the AWS KMS endpoint.\n\n\n\nTo remediate this issue, users should rebuild any custom enclave image against aws-nitro-enclaves-sdk-c 0.4.6.",
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              "description": "CWE-807 Reliance on untrusted inputs in a security decision",
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      "references": [
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          "url": "https://github.com/aws/aws-nitro-enclaves-sdk-c/releases/tag/v0.4.6",
          "tags": [
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        {
          "url": "https://aws.amazon.com/security/security-bulletins/2026-157-aws/",
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          "url": "https://github.com/aws/aws-nitro-enclaves-sdk-c/security/advisories/GHSA-f6f6-6f88-r57j",
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            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "CHANGED",
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