{"items":[{"id":"NVI-00012923","kind":"vulnerability","title":"Ash: Private action arguments can be set by user input via string-keyed params and atomic changesets","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-f4hc-ppw9-4hhw","CVE-2026-55736"],"plain_summary":"GitHub lists this reviewed advisory for ash. 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-223e817663694342a5ffd24d73ea1302"],"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":"2026-10-25T23:10:00.167Z","value":"5.9 MEDIUM (4.0)","meaning":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db severity; no combined Null risk score.","source_id":"sr-0454238e2d1b02231241dbe0b9684424"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.224%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.13024. Missing scores are unknown.","source_id":"sr-223e817663694342a5ffd24d73ea1302"}],"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-0bfe9b49cd86ffb10d1b9a44a0f7433e","url":"https://github.com/advisories/GHSA-f4hc-ppw9-4hhw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f4hc-ppw9-4hhw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:24:52.155Z"},{"id":"sr-0454238e2d1b02231241dbe0b9684424","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55736","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55736","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:57.723Z"},{"id":"sr-223e817663694342a5ffd24d73ea1302","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-2026-55736","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.858Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0bfe9b49cd86ffb10d1b9a44a0f7433e"],"technology":"ash","known_exclusions":[],"conditions_summary":"### Summary\n\nAsh fails to consistently strip private action arguments (those declared with `public?: false`) when a changeset is built from an untrusted parameter map. Private arguments are meant to be set only by trusted server-side code, but a caller who controls the parameters supplied to an action can inject a value for one. Any actor able to submit parameters to an action that defines a private argument can trigger it.\n\n### Details\n\nPrivate arguments (`public?: false`) are meant to be populated internally (e.g. via `Ash.Changeset.set_private_argument/3`) and never accepted from external input. When an action is invoked with a parameter map, Ash should discard keys that name a private argument. The filtering in `lib/ash/changeset/changeset.ex` is incomplete, and the gap differs across the two parameter paths.\n\n**1. Regular path (`for_create`, `for_update`, `for_destroy`).** `cast_params/4` validates keys via `get_action_argument/2`. Its atom-keyed clause filters on `public?`, but the binary-keyed (string) clause does not, so a string key matching a private argument name is accepted and written into `changeset.arguments`. User-supplied parameter maps are string-keyed, making thi","public_affected_ranges":[">= 3.0.0, < 3.29.3"]}],"null_published_at":"2026-11-07T14:01:58.740Z","source_updated_at":"2026-09-24T19:53:38.000Z","source_disclosed_at":"2026-09-24T19:53:36.000Z","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":"2026-11-01T07:24:52.155Z"},{"id":"NVI-00012923","kind":"vulnerability","title":"Ash: Private action arguments can be set by user input via string-keyed params and atomic changesets","revision":2,"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-f4hc-ppw9-4hhw","CVE-2026-55736"],"plain_summary":"GitHub lists this reviewed advisory for ash. 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-0454238e2d1b02231241dbe0b9684424"],"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":"2026-10-25T23:10:00.167Z","value":"5.9 MEDIUM (4.0)","meaning":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db severity; no combined Null risk score.","source_id":"sr-0454238e2d1b02231241dbe0b9684424"}],"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-0bfe9b49cd86ffb10d1b9a44a0f7433e","url":"https://github.com/advisories/GHSA-f4hc-ppw9-4hhw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f4hc-ppw9-4hhw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:24:52.155Z"},{"id":"sr-0454238e2d1b02231241dbe0b9684424","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55736","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55736","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:57.723Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0bfe9b49cd86ffb10d1b9a44a0f7433e"],"technology":"ash","known_exclusions":[],"conditions_summary":"### Summary\n\nAsh fails to consistently strip private action arguments (those declared with `public?: false`) when a changeset is built from an untrusted parameter map. Private arguments are meant to be set only by trusted server-side code, but a caller who controls the parameters supplied to an action can inject a value for one. Any actor able to submit parameters to an action that defines a private argument can trigger it.\n\n### Details\n\nPrivate arguments (`public?: false`) are meant to be populated internally (e.g. via `Ash.Changeset.set_private_argument/3`) and never accepted from external input. When an action is invoked with a parameter map, Ash should discard keys that name a private argument. The filtering in `lib/ash/changeset/changeset.ex` is incomplete, and the gap differs across the two parameter paths.\n\n**1. Regular path (`for_create`, `for_update`, `for_destroy`).** `cast_params/4` validates keys via `get_action_argument/2`. Its atom-keyed clause filters on `public?`, but the binary-keyed (string) clause does not, so a string key matching a private argument name is accepted and written into `changeset.arguments`. User-supplied parameter maps are string-keyed, making thi","public_affected_ranges":[">= 3.0.0, < 3.29.3"]}],"null_published_at":"2026-11-04T10:04:35.897Z","source_updated_at":"2026-09-24T19:53:38.000Z","source_disclosed_at":"2026-09-24T19:53:36.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T07:24:52.155Z"},{"id":"NVI-00012923","kind":"vulnerability","title":"Ash: Private action arguments can be set by user input via string-keyed params and atomic changesets","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-f4hc-ppw9-4hhw","CVE-2026-55736"],"plain_summary":"GitHub lists this reviewed advisory for ash. 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-0bfe9b49cd86ffb10d1b9a44a0f7433e"],"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-0bfe9b49cd86ffb10d1b9a44a0f7433e","url":"https://github.com/advisories/GHSA-f4hc-ppw9-4hhw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f4hc-ppw9-4hhw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:24:52.155Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0bfe9b49cd86ffb10d1b9a44a0f7433e"],"technology":"ash","known_exclusions":[],"conditions_summary":"### Summary\n\nAsh fails to consistently strip private action arguments (those declared with `public?: false`) when a changeset is built from an untrusted parameter map. Private arguments are meant to be set only by trusted server-side code, but a caller who controls the parameters supplied to an action can inject a value for one. Any actor able to submit parameters to an action that defines a private argument can trigger it.\n\n### Details\n\nPrivate arguments (`public?: false`) are meant to be populated internally (e.g. via `Ash.Changeset.set_private_argument/3`) and never accepted from external input. When an action is invoked with a parameter map, Ash should discard keys that name a private argument. The filtering in `lib/ash/changeset/changeset.ex` is incomplete, and the gap differs across the two parameter paths.\n\n**1. Regular path (`for_create`, `for_update`, `for_destroy`).** `cast_params/4` validates keys via `get_action_argument/2`. Its atom-keyed clause filters on `public?`, but the binary-keyed (string) clause does not, so a string key matching a private argument name is accepted and written into `changeset.arguments`. User-supplied parameter maps are string-keyed, making thi","public_affected_ranges":[">= 3.0.0, < 3.29.3"]}],"null_published_at":"2026-11-01T07:29:12.902Z","source_updated_at":"2026-09-24T19:53:38.000Z","source_disclosed_at":"2026-09-24T19:53:36.000Z","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":"2026-11-01T07:24:52.155Z"}],"next_cursor":null,"snapshot_revision":"42594"}