{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-115522",
        "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "state": "PUBLISHED",
        "assignerShortName": "Google",
        "dateReserved": "2026-10-22T18:18:29.284Z",
        "datePublished": "2026-10-28T04:36:49.927Z",
        "dateUpdated": "2026-10-28T04:36:49.927Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
                "shortName": "Google",
                "dateUpdated": "2026-10-28T04:36:49.927Z"
            },
            "title": "Cross-Application Artifact Namespace Isolation in Google Agent Development Kit (ADK) for Python",
            "datePublic": "2026-07-29T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-668",
                            "description": "CWE-668 Exposure of Resource to Wrong Sphere",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-1",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Google",
                    "product": "Agent Development Kit (ADK) for Python",
                    "packageName": "google-adk",
                    "repo": "https://github.com/google/adk-python",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.19.0",
                            "lessThan": "1.39.1",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "2.0.0a1",
                            "lessThan": "2.7.0",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "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.",
                    "supportingMedia": [
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                            "value": "<p>Exposure of Resource to Wrong Sphere (CWE-668) in <code>FileArtifactService</code> in Google Agent Development Kit (ADK) for Python (<code>google-adk</code>) 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 <code>FileArtifactService</code> root directory and use the same <code>user_id</code> (and <code>session_id</code> for session-scoped artifacts). <code>FileArtifactService</code> accepted <code>app_name</code> across its public API methods but omitted <code>app_name</code> when constructing on-disk paths (<code>root/users/{user_id}/...</code> instead of <code>root/apps/{app_name}/users/{user_id}/...</code>). Version 2.6.0 scoped writes by <code>app_name</code> but retained a legacy <code>root/users/{user_id}</code> 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.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/google/adk-python/issues/5618",
                    "tags": [
                        "issue-tracking",
                        "exploit"
                    ]
                },
                {
                    "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": [
                        "patch"
                    ]
                },
                {
                    "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",
                    "tags": [
                        "release-notes"
                    ]
                }
            ],
            "metrics": [
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                    "format": "CVSS",
                    "scenarios": [
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                            "lang": "en",
                            "value": "GENERAL"
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                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "LOW",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.3,
                        "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"
                    }
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "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.",
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                            "value": "<p>Upgrade Google Agent Development Kit (ADK) for Python (<code>google-adk</code>) to version 1.39.1 (for 1.x installations) or version 2.7.0 (for 2.x installations) or later.</p>"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "@Nant361",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "x_generator": {
                "engine": "Vulnogram 1.0.2"
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}