{"items":[{"id":"NVI-00016149","kind":"vulnerability","title":"Next.js: Unauthenticated disclosure of internal Server Function endpoints","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-955p-x3mx-jcvp","CVE-2026-64643"],"plain_summary":"GitHub lists this reviewed advisory for next, next. 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-31470aa13abeb221ba364761fabffd1f"],"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":[],"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-31470aa13abeb221ba364761fabffd1f","url":"https://github.com/advisories/GHSA-955p-x3mx-jcvp","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-955p-x3mx-jcvp","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T17:42:43.803Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-31470aa13abeb221ba364761fabffd1f"],"technology":"next","known_exclusions":[],"conditions_summary":"## Impact\n\nIn Next.js applications using App Router, Server Actions (`use server`) or `use cache` endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used.\n\nServer Action IDs can be disclosed to unauthenticated users via publicly served client artifacts (for example, static chunks containing action references).\n\nAffected users are applications using App Router + Server Actions.  \n\nBy itself, this disclosure is typically a recon/enumeration primitive; however, it can increase risk when combined with other weaknesses.\n \n## Workarounds\n\nNever assume any authentication claims at the `use cache` or `use server` boundary. Always authenticate within the boundary.","public_affected_ranges":[">= 13.0.0, < 15.5.21"]},{"certainty":"source_listed","source_ids":["sr-31470aa13abeb221ba364761fabffd1f"],"technology":"next","known_exclusions":[],"conditions_summary":"## Impact\n\nIn Next.js applications using App Router, Server Actions (`use server`) or `use cache` endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used.\n\nServer Action IDs can be disclosed to unauthenticated users via publicly served client artifacts (for example, static chunks containing action references).\n\nAffected users are applications using App Router + Server Actions.  \n\nBy itself, this disclosure is typically a recon/enumeration primitive; however, it can increase risk when combined with other weaknesses.\n \n## Workarounds\n\nNever assume any authentication claims at the `use cache` or `use server` boundary. Always authenticate within the boundary.","public_affected_ranges":[">= 16.0.0, < 16.2.11"]}],"null_published_at":"2026-11-04T10:04:27.898Z","source_updated_at":"2026-07-22T23:00:35.000Z","source_disclosed_at":"2026-07-22T23:00:34.000Z","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":"2026-11-03T17:42:43.803Z"}],"next_cursor":null,"snapshot_revision":"42594"}