{"schema":"threatline.record/2","record":{"id":"CVE-2026-115522","aliases":[],"summary":"Cross-Application Artifact Namespace Isolation in Google Agent Development Kit (ADK) for Python","details":"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.","categories":["Runtimes & languages"],"product":"Agent Development Kit (ADK) for Python","vendor":"Google","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115522","source_modified_at":"2026-10-28T04:36:49.927Z","fetched_at":"2026-10-28T08:18:35.509402Z","product":"Agent Development Kit (ADK) for Python","vendor":"Google","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"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115522","source_modified_at":"2026-10-28T04:36:49.927Z","fetched_at":"2026-10-28T08:18:35.509402Z","package":{"name":"Agent Development Kit (ADK) for Python","ecosystem":null},"version":"1.39.1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115522","source_modified_at":"2026-10-28T04:36:49.927Z","fetched_at":"2026-10-28T08:18:35.509402Z","package":{"name":"Agent Development Kit (ADK) for Python","ecosystem":null},"version":"2.7.0","basis":"first unaffected version stated in the CVE record"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T04:36:49.927Z","modified_at":"2026-10-28T04:36:49.927Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115522","fetched_at":"2026-10-28T08:18:35.509402Z","source_modified_at":"2026-10-28T04:36:49.927Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/google/adk-python/issues/5618","tags":["issue-tracking","exploit"]},{"source":"CVE List","url":"https://github.com/google/adk-python/pull/5619","tags":["patch"]},{"source":"CVE List","url":"https://github.com/google/adk-python/commit/f72f0db58c5c1f4e8b8d4f04b8c592c9e49cbe9e","tags":["patch"]},{"source":"CVE List","url":"https://github.com/google/adk-python/commit/c27d8688ed9ea619587ad96cbfd641c34dd7340c","tags":["patch"]},{"source":"CVE List","url":"https://github.com/google/adk-python/commit/0ae2bffdd2628af6c8643bc4fd40c2f49f0c6bd4","tags":["patch"]},{"source":"CVE List","url":"https://github.com/google/adk-python/releases/tag/v1.39.1","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/google/adk-python/releases/tag/v2.7.0","tags":["release-notes"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-28T04:36:49.927Z","content_hash":"5b81b025cf66039287e78d4f18ef14f532c879ce107a75db0a16b4b36399f957"}}