{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "google-adk",
          "product": "Agent Development Kit (ADK) for Python",
          "repo": "https://github.com/google/adk-python",
          "vendor": "Google",
          "versions": [
            {
              "lessThan": "1.39.1",
              "status": "affected",
              "version": "1.19.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.7.0",
              "status": "affected",
              "version": "2.0.0a1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "@Nant361"
        }
      ],
      "datePublic": "2026-07-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eExposure of Resource to Wrong Sphere (CWE-668) in \u003ccode\u003eFileArtifactService\u003c/code\u003e in Google Agent Development Kit (ADK) for Python (\u003ccode\u003egoogle-adk\u003c/code\u003e) versions 1.19.0 before 1.39.1 and 2.0.0a1 before 2.7.0 allows a caller in one application to list, read, overwrite, or delete artifacts belonging to another application when both applications share a \u003ccode\u003eFileArtifactService\u003c/code\u003e root directory and use the same \u003ccode\u003euser_id\u003c/code\u003e (and \u003ccode\u003esession_id\u003c/code\u003e for session-scoped artifacts). \u003ccode\u003eFileArtifactService\u003c/code\u003e accepted \u003ccode\u003eapp_name\u003c/code\u003e across its public API methods but omitted \u003ccode\u003eapp_name\u003c/code\u003e when constructing on-disk paths (\u003ccode\u003eroot/users/{user_id}/...\u003c/code\u003e instead of \u003ccode\u003eroot/apps/{app_name}/users/{user_id}/...\u003c/code\u003e). Version 2.6.0 scoped writes by \u003ccode\u003eapp_name\u003c/code\u003e but retained a legacy \u003ccode\u003eroot/users/{user_id}\u003c/code\u003e fallback for reads and deletes; version 2.7.0 and the 1.x backport in version 1.39.1 removed the fallback and enforce full per-app path scoping.\u003c/p\u003e"
            }
          ],
          "value": "Exposure of Resource to Wrong Sphere (CWE-668) in FileArtifactService in Google Agent Development Kit (ADK) for Python (google-adk) versions 1.19.0 before 1.39.1 and 2.0.0a1 before 2.7.0 allows a caller in one application to list, read, overwrite, or delete artifacts belonging to another application when both applications share a FileArtifactService root directory and use the same user_id (and session_id for session-scoped artifacts). FileArtifactService accepted app_name across its public API methods but omitted app_name when constructing on-disk paths (root/users/{user_id}/... instead of root/apps/{app_name}/users/{user_id}/...). Version 2.6.0 scoped writes by app_name but retained a legacy root/users/{user_id} fallback for reads and deletes; version 2.7.0 and the 1.x backport in version 1.39.1 removed the fallback and enforce full per-app path scoping."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-1",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-668",
              "description": "CWE-668 Exposure of Resource to Wrong Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T04:36:49.927Z",
        "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "shortName": "Google"
      },
      "references": [
        {
          "tags": [
            "issue-tracking",
            "exploit"
          ],
          "url": "https://github.com/google/adk-python/issues/5618"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/google/adk-python/pull/5619"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/google/adk-python/commit/f72f0db58c5c1f4e8b8d4f04b8c592c9e49cbe9e"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/google/adk-python/commit/c27d8688ed9ea619587ad96cbfd641c34dd7340c"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/google/adk-python/commit/0ae2bffdd2628af6c8643bc4fd40c2f49f0c6bd4"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/google/adk-python/releases/tag/v1.39.1"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/google/adk-python/releases/tag/v2.7.0"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpgrade Google Agent Development Kit (ADK) for Python (\u003ccode\u003egoogle-adk\u003c/code\u003e) to version 1.39.1 (for 1.x installations) or version 2.7.0 (for 2.x installations) or later.\u003c/p\u003e"
            }
          ],
          "value": "Upgrade Google Agent Development Kit (ADK) for Python (google-adk) to version 1.39.1 (for 1.x installations) or version 2.7.0 (for 2.x installations) or later."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Cross-Application Artifact Namespace Isolation in Google Agent Development Kit (ADK) for Python",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
    "assignerShortName": "Google",
    "cveId": "CVE-2026-115522",
    "datePublished": "2026-10-28T04:36:49.927Z",
    "dateReserved": "2026-10-22T18:18:29.284Z",
    "dateUpdated": "2026-10-28T04:36:49.927Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}