{"items":[{"id":"NVI-00016143","kind":"vulnerability","title":"ViewComponent: Reused Component Instances Retain Stale Render Context","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-9h85-g7w3-rh49","CVE-2026-54497"],"plain_summary":"GitHub lists this reviewed advisory for view_component. 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-10843e22fbe9b126d9df7b88c44e145b"],"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":"2026-07-15T22:51:34.000Z","value":"6.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2f75b1f2dcee19ed7c9069f60eeafbf6"},{"kind":"CVSS","as_of":"2026-10-24T20:10:00.137Z","value":"6.8 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-41b89fc5bf07ab5b3f24be46ddcfed19"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.330%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.2626. Missing scores are unknown.","source_id":"sr-10843e22fbe9b126d9df7b88c44e145b"}],"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-2f75b1f2dcee19ed7c9069f60eeafbf6","url":"https://github.com/advisories/GHSA-9h85-g7w3-rh49","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9h85-g7w3-rh49","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"},{"id":"sr-41b89fc5bf07ab5b3f24be46ddcfed19","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54497","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-54497","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:48:12.360Z"},{"id":"sr-10843e22fbe9b126d9df7b88c44e145b","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-54497","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.332Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2f75b1f2dcee19ed7c9069f60eeafbf6"],"technology":"view_component","known_exclusions":[],"conditions_summary":"# Reused Component Instances Retain Stale Render Context\n\n## Summary\n\n`ViewComponent::Base` instances retain multiple render-scoped objects across calls to `render_in`. If the same component, collection, or spacer component instance is reused across requests, users, tenants, or threads, later renders can use stale `helpers`, `controller`, `request`, `view_flow`, format/variant details, and slot child context from an earlier render.\n\nThis can cause authorization-aware components to render privileged UI for a lower-privileged user, generate links using a stale Host header, leak slot/helper state, and mix request context under concurrent rendering.\n\n## Severity\n\nThe PoC demonstrates cross-user authorization impact in a realistic downstream application pattern.\nIf the receiving program accepts downstream cross-user authorization impact as a scope-changing impact for a framework vulnerability, an alternative High score can be assigned:\n\nAlternative CVSS: 8.2\nAlternative vector: `CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N`\n\n## Affected Code\n\nValidated against:\n\n- Repository commit: `eea79445`\n- Ruby: `3.4.9`\n\nRelevant locations:\n\n- `lib/view_component/base.rb`\n  - `render_in`\n  - `cont","public_affected_ranges":[">= 4.0.0, < 4.12.0"]}],"null_published_at":"2026-11-08T19:53:44.052Z","source_updated_at":"2026-07-15T22:51:34.000Z","source_disclosed_at":"2026-07-15T22:51:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-04T09:59:26.779Z"},{"id":"NVI-00016143","kind":"vulnerability","title":"ViewComponent: Reused Component Instances Retain Stale Render Context","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9h85-g7w3-rh49","CVE-2026-54497"],"plain_summary":"GitHub lists this reviewed advisory for view_component. 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-10843e22fbe9b126d9df7b88c44e145b"],"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":"2026-07-15T22:51:34.000Z","value":"6.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2f75b1f2dcee19ed7c9069f60eeafbf6"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.330%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.2626. Missing scores are unknown.","source_id":"sr-10843e22fbe9b126d9df7b88c44e145b"}],"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-2f75b1f2dcee19ed7c9069f60eeafbf6","url":"https://github.com/advisories/GHSA-9h85-g7w3-rh49","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9h85-g7w3-rh49","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"},{"id":"sr-10843e22fbe9b126d9df7b88c44e145b","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-54497","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.332Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2f75b1f2dcee19ed7c9069f60eeafbf6"],"technology":"view_component","known_exclusions":[],"conditions_summary":"# Reused Component Instances Retain Stale Render Context\n\n## Summary\n\n`ViewComponent::Base` instances retain multiple render-scoped objects across calls to `render_in`. If the same component, collection, or spacer component instance is reused across requests, users, tenants, or threads, later renders can use stale `helpers`, `controller`, `request`, `view_flow`, format/variant details, and slot child context from an earlier render.\n\nThis can cause authorization-aware components to render privileged UI for a lower-privileged user, generate links using a stale Host header, leak slot/helper state, and mix request context under concurrent rendering.\n\n## Severity\n\nThe PoC demonstrates cross-user authorization impact in a realistic downstream application pattern.\nIf the receiving program accepts downstream cross-user authorization impact as a scope-changing impact for a framework vulnerability, an alternative High score can be assigned:\n\nAlternative CVSS: 8.2\nAlternative vector: `CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N`\n\n## Affected Code\n\nValidated against:\n\n- Repository commit: `eea79445`\n- Ruby: `3.4.9`\n\nRelevant locations:\n\n- `lib/view_component/base.rb`\n  - `render_in`\n  - `cont","public_affected_ranges":[">= 4.0.0, < 4.12.0"]}],"null_published_at":"2026-11-07T14:02:01.398Z","source_updated_at":"2026-07-15T22:51:34.000Z","source_disclosed_at":"2026-07-15T22:51:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-04T09:59:26.779Z"},{"id":"NVI-00016143","kind":"vulnerability","title":"ViewComponent: Reused Component Instances Retain Stale Render Context","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9h85-g7w3-rh49","CVE-2026-54497"],"plain_summary":"GitHub lists this reviewed advisory for view_component. 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-2f75b1f2dcee19ed7c9069f60eeafbf6"],"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":"2026-07-15T22:51:34.000Z","value":"6.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2f75b1f2dcee19ed7c9069f60eeafbf6"}],"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-2f75b1f2dcee19ed7c9069f60eeafbf6","url":"https://github.com/advisories/GHSA-9h85-g7w3-rh49","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9h85-g7w3-rh49","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2f75b1f2dcee19ed7c9069f60eeafbf6"],"technology":"view_component","known_exclusions":[],"conditions_summary":"# Reused Component Instances Retain Stale Render Context\n\n## Summary\n\n`ViewComponent::Base` instances retain multiple render-scoped objects across calls to `render_in`. If the same component, collection, or spacer component instance is reused across requests, users, tenants, or threads, later renders can use stale `helpers`, `controller`, `request`, `view_flow`, format/variant details, and slot child context from an earlier render.\n\nThis can cause authorization-aware components to render privileged UI for a lower-privileged user, generate links using a stale Host header, leak slot/helper state, and mix request context under concurrent rendering.\n\n## Severity\n\nThe PoC demonstrates cross-user authorization impact in a realistic downstream application pattern.\nIf the receiving program accepts downstream cross-user authorization impact as a scope-changing impact for a framework vulnerability, an alternative High score can be assigned:\n\nAlternative CVSS: 8.2\nAlternative vector: `CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N`\n\n## Affected Code\n\nValidated against:\n\n- Repository commit: `eea79445`\n- Ruby: `3.4.9`\n\nRelevant locations:\n\n- `lib/view_component/base.rb`\n  - `render_in`\n  - `cont","public_affected_ranges":[">= 4.0.0, < 4.12.0"]}],"null_published_at":"2026-11-04T10:04:27.898Z","source_updated_at":"2026-07-15T22:51:34.000Z","source_disclosed_at":"2026-07-15T22:51:33.000Z","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":"2026-11-04T09:59:26.779Z"}],"next_cursor":null,"snapshot_revision":"42594"}