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CVE-2026-115522 (GCVE-0-2026-115522)

Vulnerability from nvd – Published: 2026-10-28 04:36 – Updated: 2026-10-28 04:36

Title

Cross-Application Artifact Namespace Isolation in Google Agent Development Kit (ADK) for Python

Summary

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.

Severity

5.3 (Medium)


                        
                          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

CWE

CWE-668 - Exposure of Resource to Wrong Sphere

Assigner

Google CNA under the Google root

CNA scorecard B 77/100 over 40 records in the last 180 days details

References

7 references

URL	Tags
https://github.com/google/adk-python/issues/5618	issue-trackingexploit
https://github.com/google/adk-python/pull/5619	patch
https://github.com/google/adk-python/commit/f72f0…	patch
https://github.com/google/adk-python/commit/c27d8…	patch
https://github.com/google/adk-python/commit/0ae2b…	patch
https://github.com/google/adk-python/releases/tag…	release-notes
https://github.com/google/adk-python/releases/tag…	release-notes

Impacted products

1 product

Vendor	Product	Version
Google	Agent Development Kit (ADK) for Python	Affected: 1.19.0 , < 1.39.1 (semver) Affected: 2.0.0a1 , < 2.7.0 (semver)

Date Public

2026-07-29 00:00

Credits

@Nant361

Show details on NVD website

JSON

To clipboard

{
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        {
          "defaultStatus": "unaffected",
          "packageName": "google-adk",
          "product": "Agent Development Kit (ADK) for Python",
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            },
            {
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          "lang": "en",
          "supportingMedia": [
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        }
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      "impacts": [
        {
          "capecId": "CAPEC-1",
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
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            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "url": "https://github.com/google/adk-python/issues/5618"
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        {
          "tags": [
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          "url": "https://github.com/google/adk-python/commit/c27d8688ed9ea619587ad96cbfd641c34dd7340c"
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          "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"
        }
      ],
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          "lang": "en",
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            }
          ],
          "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",
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    "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"
}

CVE-2026-115522 (GCVE-0-2026-115522)

Vulnerability from cvelistv5 – Published: 2026-10-28 04:36 – Updated: 2026-10-28 04:36

Title

Cross-Application Artifact Namespace Isolation in Google Agent Development Kit (ADK) for Python

Summary

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.

Severity

5.3 (Medium)


                        
                          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

CWE

CWE-668 - Exposure of Resource to Wrong Sphere

Assigner

Google CNA under the Google root

CNA scorecard B 77/100 over 40 records in the last 180 days details

References

7 references

URL	Tags
https://github.com/google/adk-python/issues/5618	issue-trackingexploit
https://github.com/google/adk-python/pull/5619	patch
https://github.com/google/adk-python/commit/f72f0…	patch
https://github.com/google/adk-python/commit/c27d8…	patch
https://github.com/google/adk-python/commit/0ae2b…	patch
https://github.com/google/adk-python/releases/tag…	release-notes
https://github.com/google/adk-python/releases/tag…	release-notes

Impacted products

1 product

Vendor	Product	Version
Google	Agent Development Kit (ADK) for Python	Affected: 1.19.0 , < 1.39.1 (semver) Affected: 2.0.0a1 , < 2.7.0 (semver)

Date Public

2026-07-29 00:00

Credits

@Nant361

Show details on NVD website

JSON

To clipboard

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        {
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          "packageName": "google-adk",
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          "repo": "https://github.com/google/adk-python",
          "vendor": "Google",
          "versions": [
            {
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              "status": "affected",
              "version": "1.19.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.7.0",
              "status": "affected",
              "version": "2.0.0a1",
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            }
          ]
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        {
          "lang": "en",
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    "state": "PUBLISHED"
  },
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}

Find a vulnerability

Search criteria

2 vulnerabilities found for Agent Development Kit (ADK) for Python by Google

CVE-2026-115522 (GCVE-0-2026-115522)

CVE-2026-115522 (GCVE-0-2026-115522)