{"id":"CVE-2026-115522","revision":"519de5360d1e4aa29b1366008a1d8341","records":[{"revision":"519de5360d1e4aa29b1366008a1d8341","observedAt":"2026-10-28T06:06:08.472+00:00","statement":{"source":"cve-program","id":"CVE-2026-115522","aliases":[],"title":"Cross-Application Artifact Namespace Isolation in Google Agent Development Kit (ADK) for Python","description":"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.","state":0,"publishedAt":"2026-10-28T04:36:49.927+00:00","modifiedAt":"2026-10-28T04:36:49.927+00:00","affected":[{"ecosystem":"Vendor product","name":"google-adk","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Google\",\n                    \"product\": \"Agent Development Kit (ADK) for Python\",\n                    \"packageName\": \"google-adk\",\n                    \"repo\": \"https://github.com/google/adk-python\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"1.19.0\",\n                            \"lessThan\": \"1.39.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2.0.0a1\",\n                            \"lessThan\": \"2.7.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/google/adk-python/issues/5618","https://github.com/google/adk-python/pull/5619","https://github.com/google/adk-python/commit/f72f0db58c5c1f4e8b8d4f04b8c592c9e49cbe9e","https://github.com/google/adk-python/commit/c27d8688ed9ea619587ad96cbfd641c34dd7340c","https://github.com/google/adk-python/commit/0ae2bffdd2628af6c8643bc4fd40c2f49f0c6bd4","https://github.com/google/adk-python/releases/tag/v1.39.1","https://github.com/google/adk-python/releases/tag/v2.7.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115522","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115522","identifiers":["CVE-2026-115522"]},"retained":false,"historicalAffected":[]}],"coverage":[]}