{"items":[{"id":"NVI-00015304","kind":"vulnerability","title":"Electron: Extension tab APIs operate across session boundaries","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m55f-7gqj-fr98","CVE-2026-70602"],"plain_summary":"GitHub lists this reviewed advisory for electron, electron, electron, electron. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-588422fca5e69039ffab07bc62257eeb"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-08-05T15:57:11.000Z","value":"6.6 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-588422fca5e69039ffab07bc62257eeb"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-588422fca5e69039ffab07bc62257eeb","url":"https://github.com/advisories/GHSA-m55f-7gqj-fr98","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m55f-7gqj-fr98","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:09.980Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-588422fca5e69039ffab07bc62257eeb"],"technology":"electron","known_exclusions":[],"conditions_summary":"### Impact\nExtension tab and scripting APIs were not scoped to the extension's own `session`. A malicious or compromised extension loaded into one session could navigate, script, and read from windows belonging to a different session.\n\nApps are only affected if they load Chrome extensions via `session.loadExtension` and rely on separate sessions to isolate that extension from other content. Apps that do not load extensions, or that use a single session, are not affected.\n\n### Workarounds\nOnly load extensions from sources you trust; do not rely on session separation alone to contain an extension.\n\n### Fixed Versions\n* `42.0.0-beta.3`\n* `41.2.1`\n* `40.9.0`\n* `39.8.8`\n\n### For more information\nIf you have any questions or comments about this advisory, email Electron at security@electronjs.org","public_affected_ranges":["< 39.8.8"]},{"certainty":"source_listed","source_ids":["sr-588422fca5e69039ffab07bc62257eeb"],"technology":"electron","known_exclusions":[],"conditions_summary":"### Impact\nExtension tab and scripting APIs were not scoped to the extension's own `session`. A malicious or compromised extension loaded into one session could navigate, script, and read from windows belonging to a different session.\n\nApps are only affected if they load Chrome extensions via `session.loadExtension` and rely on separate sessions to isolate that extension from other content. Apps that do not load extensions, or that use a single session, are not affected.\n\n### Workarounds\nOnly load extensions from sources you trust; do not rely on session separation alone to contain an extension.\n\n### Fixed Versions\n* `42.0.0-beta.3`\n* `41.2.1`\n* `40.9.0`\n* `39.8.8`\n\n### For more information\nIf you have any questions or comments about this advisory, email Electron at security@electronjs.org","public_affected_ranges":[">= 40.0.0-alpha.1, < 40.9.0"]},{"certainty":"source_listed","source_ids":["sr-588422fca5e69039ffab07bc62257eeb"],"technology":"electron","known_exclusions":[],"conditions_summary":"### Impact\nExtension tab and scripting APIs were not scoped to the extension's own `session`. A malicious or compromised extension loaded into one session could navigate, script, and read from windows belonging to a different session.\n\nApps are only affected if they load Chrome extensions via `session.loadExtension` and rely on separate sessions to isolate that extension from other content. Apps that do not load extensions, or that use a single session, are not affected.\n\n### Workarounds\nOnly load extensions from sources you trust; do not rely on session separation alone to contain an extension.\n\n### Fixed Versions\n* `42.0.0-beta.3`\n* `41.2.1`\n* `40.9.0`\n* `39.8.8`\n\n### For more information\nIf you have any questions or comments about this advisory, email Electron at security@electronjs.org","public_affected_ranges":[">= 41.0.0-alpha.1, < 41.2.1"]},{"certainty":"source_listed","source_ids":["sr-588422fca5e69039ffab07bc62257eeb"],"technology":"electron","known_exclusions":[],"conditions_summary":"### Impact\nExtension tab and scripting APIs were not scoped to the extension's own `session`. A malicious or compromised extension loaded into one session could navigate, script, and read from windows belonging to a different session.\n\nApps are only affected if they load Chrome extensions via `session.loadExtension` and rely on separate sessions to isolate that extension from other content. Apps that do not load extensions, or that use a single session, are not affected.\n\n### Workarounds\nOnly load extensions from sources you trust; do not rely on session separation alone to contain an extension.\n\n### Fixed Versions\n* `42.0.0-beta.3`\n* `41.2.1`\n* `40.9.0`\n* `39.8.8`\n\n### For more information\nIf you have any questions or comments about this advisory, email Electron at security@electronjs.org","public_affected_ranges":[">= 42.0.0-alpha.1, < 42.0.0-beta.3"]}],"null_published_at":"2026-11-03T10:03:26.568Z","source_updated_at":"2026-08-05T15:57:11.000Z","source_disclosed_at":"2026-08-05T15:57:11.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-03T09:58:09.980Z"}],"next_cursor":null,"snapshot_revision":"42594"}