Incorrect privilege assignment in AWS CICD-toolchain-for-serverless-applications

{
  "id": "8982622755ebbc0565f4fa8c39589093b13e510bd5d14096ce2d74dc51c2b62d",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-112407",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Incorrect privilege assignment in AWS CICD-toolchain-for-serverless-applications",
    "summary": "Incorrect privilege assignment in the IAM policy of AWS CICD-toolchain-for-serverless-applications 1.0.7 through 1.0.10 allows remote authenticated users with push access to the application source repository to escalate privileges and access or modify resources outside the application stack in the same AWS account via application templates deployed by the toolchain pipeline. To remediate this issue, users should upgrade existing toolchain stacks to version 1.0.11 or later.",
    "evidence": "cve:CVE-2026-112407",
    "products": [
      {
        "name": {
          "value": "CICD-toolchain-for-serverless-applications",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-112407",
      "aliases": [
        "CVE-2026-112407"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 8.8,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "confidentialityImpact": "HIGH"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "format": "CVSS",
          "cvssV4_0": {
            "Safety": "NOT_DEFINED",
            "version": "4.0",
            "Recovery": "NOT_DEFINED",
            "baseScore": 8.7,
            "Automatable": "NOT_DEFINED",
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "exploitMaturity": "NOT_DEFINED",
            "providerUrgency": "NOT_DEFINED",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "LOW",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "AWS",
          "product": "CICD-toolchain-for-serverless-applications",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.7",
              "versionType": "custom",
              "lessThanOrEqual": "1.0.10"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-28T20:04:37.868Z",
      "provider": "cve",
      "references": [
        "https://github.com/aws-samples/aws-lambda-sample-applications/releases/tag/1.0.11",
        "https://github.com/aws-samples/aws-lambda-sample-applications/security/advisories/GHSA-f76m-4xrx-pvq5",
        "https://aws.amazon.com/security/security-bulletins/2026-141-aws/"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-112407",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-28T17:53:21.671145Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-28T20:04:37.868Z"
            }
          }
        ],
        "cna": {
          "orgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
          "shortName": "AMZN",
          "dateUpdated": "2026-10-20T20:34:40.192Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-112407",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 484663,
  "published_at": "2026-10-20T20:34:40.192+00:00"
}